PROMUS HOTEL CORP
8-K, 1997-09-05
HOTELS & MOTELS
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<PAGE>

    AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON SEPTEMBER 5, 1997
- -------------------------------------------------------------------------------




                       SECURITIES AND EXCHANGE COMMISSION

                             WASHINGTON, D.C. 20549

                             ----------------------


                                    FORM 8-K

                                 CURRENT REPORT
       PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934


                DATE OF REPORT (DATE OF EARLIEST EVENT REPORTED):

                               SEPTEMBER 1, 1997

                               ------------------

                            PROMUS HOTEL CORPORATION
             (Exact name of registrant as specified in its charter)



         DELAWARE                     1-11463                 62-1596939
(State or other jurisdiction   (Commission File Number)    (I.R.S. Employer
   of incorporation or                                   Identification Number)
      organization)



              755 CROSSOVER LANE                         38117
              MEMPHIS, TENNESSEE                       (Zip Code)
   (Address of principal executive offices)



                                 (901) 374-5000
               (Registrant's telephone number, including area code)


                                  Not Applicable
          (Former name or former address, if changed since last report)

- -------------------------------------------------------------------------------

<PAGE>


ITEM 5.   Other Events

    On September 1, 1997, Promus Hotel Corporation ("Promus"), Doubletree 
Corporation ("Doubletree") and Parent Holding Corp., a newly-formed 
corporation jointly formed by Promus and Doubletree ("Parent"), entered into 
an Agreement and Plan of Merger (the "Merger Agreement"), pursuant to which 
Parent will form two subsidiaries that will merge with and into Promus and 
Doubletree such that Promus and Doubletree become wholly-owned subsidiaries 
of Parent (the "Mergers").  Pursuant to the Merger Agreement, upon the 
effectiveness of the Mergers, (i) each outstanding share of Common Stock, par 
value $.10 per share, of Promus will be converted into the right to receive 
0.925 shares of Common Stock, par value $.01 per share, of Parent ("Parent 
Common Stock"), and (ii) each outstanding share of Common Stock, par value 
$.01 per share, of Doubletree will be converted into the right to receive one 
share of Parent Common Stock.  Consummation of the Mergers is subject to the 
satisfaction or waiver by the parties of certain conditions, including the 
receipt of regulatory approvals and approvals by the stockholders of Promus 
and Doubletree.

    In connection with the Merger Agreement, Promus and Doubletree also have 
entered into (i) a Stock Option Agreement pursuant to which Promus granted to 
Doubletree an option to purchase up to 19.9% of the outstanding common stock 
of Promus under certain circumstances and (ii) a Stock Option Agreement 
pursuant to which Doubletree has granted to Promus an option to purchase up 
to 19.9% of the outstanding common stock of Doubletree under certain 
circumstances (together, the "Stock Option Agreements").  In addition, 
certain stockholders of Doubletree holding over 39% of the outstanding common 
stock of Doubletree have entered into a stockholder support agreement with 
Promus (the "Stockholder Support Agreement"), pursuant to which such 
stockholders agreed to vote their shares in favor of the adoption of the 
Merger Agreement and approval of the Doubletree Merger, subject to certain 
conditions. 

    On September 2, 1997, Promus and Doubletree issued a joint press release 
announcing the execution of the Merger Agreement.  The Merger Agreement, the 
Stock Option Agreements, the Stockholder Support Agreement and the press 
release are filed as exhibits hereto and are incorporated by reference herein.


ITEM 7.   Financial Statements and Exhibits

    (c)   Exhibits.

    2.1   Agreement and Plan of Merger, dated as of September 1, 1997, by and 
          among Doubletree Corporation, Promus Hotel Corporation and Parent 
          Holding Corp.

   10.1   Stock Option Agreement (Doubletree), dated as of September 1, 1997,
          by and between Doubletree Corporation and Promus Hotel Corporation.

   10.2   Stock Option Agreement (Promus), dated as of September 1, 1997, by 
          and between Promus Hotel Corporation and Doubletree Corporation.

   10.3   Stockholder Support Agreement, dated as of September 1, 1997 by and 
          among certain stockholders of Doubletree, to and for the benefit of 
          Promus.

<PAGE>


   99.1   Form of Restated Certificate of Incorporation of Promus Hotel 
          Corporation

   99.2   Form of Amended and Restated Bylaws of Promus Hotel Corporation.

   99.3   Joint Press Release, dated September 2, 1997, issued by Promus 
          Hotel Corporation and Doubletree Corporation.


                                      SIGNATURES


    Pursuant to the requirements of the Securities Exchange Act of 1934, the 
registrant has duly caused this report to be signed on its behalf by the 
undersigned hereunto duly authorized.

                             PROMUS HOTEL CORPORATION



                                     /s/ RAYMOND E. SCHULTZ
                             -------------------------------------------------
                             Raymond E. Schultz
                             Chairman of the Board and Chief Executive Officer


Dated:  September 5, 1997

<PAGE>



                                  EXHIBIT INDEX



 Exhibit
  Number                                     Description
 -------                                    -------------

    2.1       Agreement and Plan of Merger, dated as of September 1, 1997, by 
              and among Doubletree Corporation, Promus Hotel Corporation and 
              Parent Holding Corp.   

   10.1       Stock Option Agreement (Doubletree), dated as of September 1, 
              1997, by and between Doubletree Corporation and Promus Hotel 
              Corporation.

   10.2       Stock Option Agreement (Promus), dated as of September 1, 1997, 
              by and between Promus Hotel Corporation and Doubletree 
              Corporation.

   10.3       Stockholder Support Agreement, dated as of September 1, 1997,
              by and among certain stockholders of Doubletree, to and for the
              benefit of Promus.

   99.1       Form of Restated Certificate of Incorporation of Promus Hotel
              Corporation.

   99.2       Form of Amended and Restated Bylaws of Promus Hotel Corporation.

   99.3       Joint Press Release, dated September 2, 1997, issued by Promus 
              Hotel Corporation and Doubletree Corporation.


<PAGE>





                             AGREEMENT AND PLAN OF MERGER

                            DATED AS OF SEPTEMBER 1, 1997

                                        AMONG

                               DOUBLETREE CORPORATION,

                               PROMUS HOTEL CORPORATION

                                         AND

                                 PARENT HOLDING CORP.



<PAGE>

                                  TABLE OF CONTENTS

<TABLE>
<CAPTION>

                                                                                          Page
<S>                <C>                                                                    <C> 
ARTICLE I.         THE MERGERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   2

   Section 1.1.    Certificate of Incorporation and Bylaws of Parent . . . . . . . . . . .   2
   Section 1.2.    The Doubletree Merger . . . . . . . . . . . . . . . . . . . . . . . . .   2
   Section 1.3.    The Promus Merger . . . . . . . . . . . . . . . . . . . . . . . . . . .   2
   Section 1.4.    Effective Time of the Mergers . . . . . . . . . . . . . . . . . . . . .   2
   Section 1.5.    Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   Section 1.6.    Effect of the Mergers . . . . . . . . . . . . . . . . . . . . . . . . .   3
   Section 1.7.    Certificate of Incorporation and Bylaws of the Surviving Corporations .   3
   Section 1.8.    Directors and Officers of the Surviving Corporations  . . . . . . . . .   3

ARTICLE II.        CONVERSION OF SECURITIES  . . . . . . . . . . . . . . . . . . . . . . .   4

   Section 2.1.    Conversion of Doubletree Capital Stock  . . . . . . . . . . . . . . . .   4
   Section 2.2.    Conversion of Promus Capital Stock  . . . . . . . . . . . . . . . . . .   4
   Section 2.3.    Cancellation of Parent Stock  . . . . . . . . . . . . . . . . . . . . .   5
   Section 2.4.    Exchange of Certificates  . . . . . . . . . . . . . . . . . . . . . . .   5

ARTICLE III.       REPRESENTATIONS AND WARRANTIES OF DOUBLETREE  . . . . . . . . . . . . .   8

   Section 3.1.    Organization of Doubletree  . . . . . . . . . . . . . . . . . . . . . .   8
   Section 3.2.    Doubletree Capital Structure  . . . . . . . . . . . . . . . . . . . . .   9
   Section 3.3.    Authority; No Conflict; Required Filings and Consents . . . . . . . . .  10
   Section 3.4.    SEC Filings; Financial Statements . . . . . . . . . . . . . . . . . . .  11
   Section 3.5.    No Undisclosed Liabilities  . . . . . . . . . . . . . . . . . . . . . .  12
   Section 3.6.    Absence of Certain Changes or Events  . . . . . . . . . . . . . . . . .  12
   Section 3.7.    Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  13
   Section 3.8.    Properties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
   Section 3.9.    Intellectual Property . . . . . . . . . . . . . . . . . . . . . . . . .  14
   Section 3.10.   Agreements, Contracts and Commitments . . . . . . . . . . . . . . . . .  14
   Section 3.11.   Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
   Section 3.12.   Environmental Matters . . . . . . . . . . . . . . . . . . . . . . . . .  15
   Section 3.13.   Employee Benefit Plans  . . . . . . . . . . . . . . . . . . . . . . . .  16
   Section 3.14.   Compliance With Laws  . . . . . . . . . . . . . . . . . . . . . . . . .  17
   Section 3.15.   Accounting and Tax Matters  . . . . . . . . . . . . . . . . . . . . . .  17
   Section 3.16.   Registration Statement; Joint Proxy Statement/Prospectus  . . . . . . .  17
   Section 3.17.   Labor Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
   Section 3.18.   Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
   Section 3.19.   Doubletree Long-Range Plans . . . . . . . . . . . . . . . . . . . . . .  18
   Section 3.20.   Opinion of Financial Advisor  . . . . . . . . . . . . . . . . . . . . .  18
   Section 3.21.   No Existing Discussions . . . . . . . . . . . . . . . . . . . . . . . .  18
   Section 3.22.   Section 203 of the DGCL Not Applicable  . . . . . . . . . . . . . . . .  19
</TABLE>

                                       i


<PAGE>

<TABLE>
<CAPTION>

                                                                                          Page
<S>                <C>                                                                    <C>
   Section 3.23.   Doubletree Rights Plan  . . . . . . . . . . . . . . . . . . . . . . . .  19

ARTICLE IV.        REPRESENTATIONS AND WARRANTIES OF PROMUS  . . . . . . . . . . . . . . .  19

   Section 4.1.    Organization of Promus  . . . . . . . . . . . . . . . . . . . . . . . .  19
   Section 4.2.    Promus Capital Structure  . . . . . . . . . . . . . . . . . . . . . . .  20
   Section 4.3.    Authority; No Conflict; Required Filings and Consents . . . . . . . . .  21
   Section 4.4.    SEC Filings; Financial Statements . . . . . . . . . . . . . . . . . . .  22
   Section 4.5.    No Undisclosed Liabilities  . . . . . . . . . . . . . . . . . . . . . .  22
   Section 4.6.    Absence of Certain Changes or Events  . . . . . . . . . . . . . . . . .  22
   Section 4.7.    Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
   Section 4.8.    Properties  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
   Section 4.9.    Intellectual Property . . . . . . . . . . . . . . . . . . . . . . . . .  24
   Section 4.10.   Agreements, Contracts and Commitments . . . . . . . . . . . . . . . . .  24
   Section 4.11.   Litigation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
   Section 4.12.   Environmental Matters . . . . . . . . . . . . . . . . . . . . . . . . .  25
   Section 4.13.   Employee Benefit Plans  . . . . . . . . . . . . . . . . . . . . . . . .  25
   Section 4.14.   Compliance With Laws  . . . . . . . . . . . . . . . . . . . . . . . . .  26
   Section 4.15.   Accounting and Tax Matters  . . . . . . . . . . . . . . . . . . . . . .  26
   Section 4.16.   Registration Statement; Joint Proxy Statement/Prospectus  . . . . . . .  27
   Section 4.17.   Labor Matters . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
   Section 4.18.   Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
   Section 4.19.   Promus Long-Range Plans . . . . . . . . . . . . . . . . . . . . . . . .  28
   Section 4.20.   Opinion of Financial Advisor  . . . . . . . . . . . . . . . . . . . . .  28
   Section 4.21.   No Existing Discussions . . . . . . . . . . . . . . . . . . . . . . . .  28
   Section 4.22.   Section 203 of the DGCL Not Applicable  . . . . . . . . . . . . . . . .  28
   Section 4.23.   Promus Rights Plan  . . . . . . . . . . . . . . . . . . . . . . . . . .  28

ARTICLE V.         COVENANTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28

   Section 5.1.    Conduct of Business . . . . . . . . . . . . . . . . . . . . . . . . . .  28
   Section 5.2.    Cooperation; Notice; Cure . . . . . . . . . . . . . . . . . . . . . . .  30
   Section 5.3.    No Solicitation . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
   Section 5.4.    Joint Proxy Statement/Prospectus; Registration Statement  . . . . . . .  32
   Section 5.5.    NASDAQ Quotation and NYSE Listing . . . . . . . . . . . . . . . . . . .  32
   Section 5.6.    Access to Information . . . . . . . . . . . . . . . . . . . . . . . . .  32
   Section 5.7.    Stockholders' Meetings  . . . . . . . . . . . . . . . . . . . . . . . .  33
   Section 5.8.    Legal Conditions to Merger  . . . . . . . . . . . . . . . . . . . . . .  33
   Section 5.9.    Public Disclosure . . . . . . . . . . . . . . . . . . . . . . . . . . .  34
   Section 5.10.   Nonrecognition Exchange . . . . . . . . . . . . . . . . . . . . . . . .  34
   Section 5.11.   Pooling Accounting  . . . . . . . . . . . . . . . . . . . . . . . . . .  34
   Section 5.12.   Affiliate Agreements  . . . . . . . . . . . . . . . . . . . . . . . . .  35
   Section 5.13.   NYSE Listing  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
   Section 5.14.   Stock Plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  35
   Section 5.15.   Brokers or Finders  . . . . . . . . . . . . . . . . . . . . . . . . . .  36
   Section 5.16.   Indemnification . . . . . . . . . . . . . . . . . . . . . . . . . . . .  37
</TABLE>

                                       ii

<PAGE>

<TABLE>
<CAPTION>

                                                                                          Page
<S>                <C>                                                                    <C>
   Section 5.17.   Letter of Promus's Accountants  . . . . . . . . . . . . . . . . . . . .  37
   Section 5.18.   Letter of Doubletree's Accountants  . . . . . . . . . . . . . . . . . .  38
   Section 5.19.   Stock Option Agreements . . . . . . . . . . . . . . . . . . . . . . . .  38
   Section 5.20.   Post-Merger Corporate Governance; Employment Arrangements . . . . . . .  38
   Section 5.21.   Name of Parent  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
   Section 5.22.   Parent Stockholder Rights Plan; Amendment of Promus Rights Plan . . . .  40
   Section 5.23.   GEPT Warrant; Doubletree Registration Rights Agreement  . . . . . . . .  40
   Section 5.24.   Conveyance Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . .  40
   Section 5.25.   Transfer Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  41
   Section 5.26.   Stockholder Litigation  . . . . . . . . . . . . . . . . . . . . . . . .  41
   Section 5.27.   Employee Benefits; Severance  . . . . . . . . . . . . . . . . . . . . .  41

ARTICLE VI.        CONDITIONS TO MERGER  . . . . . . . . . . . . . . . . . . . . . . . . .  42

   Section 6.1.    Conditions to Each Party's Obligation to Effect the Mergers . . . . . .  42
   Section 6.2.    Additional Conditions to Obligations of Doubletree  . . . . . . . . . .  43
   Section 6.3.    Additional Conditions to Obligations of Promus  . . . . . . . . . . . .  44

ARTICLE VII.        TERMINATION AND AMENDMENT  . . . . . . . . . . . . . . . . . . . . . .  44

   Section 7.1.    Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  44
   Section 7.2.    Effect of Termination . . . . . . . . . . . . . . . . . . . . . . . . .  46
   Section 7.3.    Fees and Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . .  47
   Section 7.4.    Amendment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  48
   Section 7.5.    Extension; Waiver . . . . . . . . . . . . . . . . . . . . . . . . . . .  49

ARTICLE VIII.      MISCELLANEOUS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  49

   Section 8.1.    Nonsurvival of Representations, Warranties and Agreements . . . . . . .  49
   Section 8.2.    Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  49
   Section 8.3.    Interpretation  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
   Section 8.4.    Counterparts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  50
   Section 8.5.    Entire Agreement; No Third Party Beneficiaries  . . . . . . . . . . . .  50
   Section 8.6.    Governing Law . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51
   Section 8.7.    Assignment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  51

</TABLE>

EXHIBITS

   EXHIBIT A       STOCK OPTION AGREEMENT (DOUBLETREE)
   EXHIBIT B       STOCK OPTION AGREEMENT (PROMUS)
   EXHIBIT C       STOCKHOLDER SUPPORT AGREEMENT
   EXHIBIT D       CERTIFICATE OF INCORPORATION OF PARENT
   EXHIBIT E       BYLAWS OF PARENT
   EXHIBIT F       FORM OF DOUBLETREE AFFILIATE AGREEMENT
   EXHIBIT G       FORM OF PROMUS AFFILIATE AGREEMENT


                                      iii


<PAGE>

                            TABLES OF DEFINED TERMS

<TABLE>
<CAPTION>

                         
<S>                <C>                                           <C>
TERMS                                                            CROSS REFERENCE
- -----                                                              IN AGREEMENT 
                                                                 ---------------
Acquisition Proposal                                             Section 5.3(a)
Affiliate                                                        Section 5.12
Affiliate Agreement                                              Section 5.12
Agreement                                                        Preamble
Alternative Transaction                                          Section 7.3(e)
Bankruptcy and Equity Exception                                  Section 3.3(a)
Certificate of Merger                                            Section 1.4
Certificates                                                     Section 2.4(b)
Closing                                                          Section 1.5
Closing Date                                                     Section 1.5
Code                                                             Preamble
Confidentiality Agreements                                       Section 5.3(a)
DGCL                                                             Section 1.2
Doubletree                                                       Preamble
Doubletree Balance Sheet                                         Section 3.4(b)
Doubletree Common Stock                                          Section 2.1
Doubletree Director                                              Section 5.20(a)
Doubletree Disclosure Schedule                                   Article III
Doubletree Employee Plans                                        Section 3.13(a)
Doubletree Employees                                             Section 5.27(b)
Doubletree Exchange Ratio                                        Section 2.1(c)
Doubletree Material Adverse Effect                               Section 3.1 
Doubletree Material Contracts                                    Section 3.10(a)
Doubletree Merger                                                Section 1.2
Doubletree Preferred Stock                                       Section 3.2(a)
Doubletree Rights Plan                                           Section 3.2(b)
Doubletree SEC Reports                                           Section 3.4(a)
Doubletree Stock Option                                          Section 5.14(a)
Doubletree Stock Option Agreement                                Preamble 
Doubletree Stock Plans                                           Section 3.2(a)
Doubletree Stockholders' Meeting                                 Section 3.16 
Doubletree Sub                                                   Section 1.2
Doubletree Surviving Corporation                                 Section 1.6
Effective Time                                                   Section 1.4 
Environmental Law                                                Section 3.12(b)
ERISA                                                            Section 3.13(a)
ERISA Affiliate                                                  Section 3.13(a)
Exchange Act                                                     Section 3.3(c)
Exchange Agent                                                   Section 2.4(a)
Exchange Fund                                                    Section 2.4(a)
GEPT Warrant                                                     Section 3.2(b)
</TABLE>

                                       iv

<PAGE>

<TABLE>
<CAPTION>

TERMS                                                            CROSS REFERENCE
- -----                                                              IN AGREEMENT 
                                                                 ---------------
<S>                                                              <C> 
Governmental Entity                                              Section 3.3(c) 
Hazardous Substance                                              Section 3.12(c) 
HSR Act                                                          Section 3.3(c) 
Indemnified Parties                                              Section 5.16(a) 
IRS                                                              Section 3.7(b) 
Joint Proxy Statement/Prospectus                                 Section 3.16 
Material Lease(s)                                                Section 3.8(a)
Mergers                                                          Section 1.3 
NYSE                                                             Section 2.4(e)
Order                                                            Section 5.8(b) 
Outside Date                                                     Section 7.1(b) 
Parent                                                           Preamble
Parent Common Stock                                              Section 2.1(c)
Parent Rights Plan                                               Section 5.22
Promus                                                           Preamble
Promus Balance Sheet                                             Section 4.4(b) 
Promus Common Stock                                              Section 2.2
Promus Director                                                  Section 5.20(a)
Promus Disclosure Schedule                                       Article IV 
Promus Employee Plans                                            Section 4.13(a) 
Promus Employees                                                 Section 5.27(b)
Promus Exchange Ratio                                            Section 2.2(c)
Promus Material Adverse Effect                                   Section 4.1 
Promus Material Contracts                                        Section 4.10(a)
Promus Merger                                                    Section 1.3
Promus Preferred Stock                                           Section 4.2(a) 
Promus Rights Plan                                               Section 4.2(b) 
Promus SEC Reports                                               Section 4.4(a) 
Promus Special Stock                                             Section 4.2(a)
Promus Stock Option                                              Section 5.14(a)
Promus Stock Option Agreement                                    Preamble 
Promus Stock Plans                                               Section 4.2(a) 
Promus Stockholders' Meeting                                     Section 3.16 
Promus Sub                                                       Section 1.3
Promus Surviving Corporation                                     Section 1.6
Registration Statement                                           Section 3.16
Rule 145                                                         Section 5.12
SEC                                                              Section 3.3(c)
Securities Act                                                   Section 2.4(j)
Stock Option Agreement                                           Preamble
Stockholder Support Agreement                                    Preamble
Subsidiary                                                       Section 3.1
Superior Proposal                                                Section 5.3(a)
</TABLE>
                                       v

<PAGE>

TERMS                                                            CROSS REFERENCE
- -----                                                              IN AGREEMENT 
                                                                 ---------------
Surviving Corporation                                            Section 1.6
Tax                                                              Section 3.7(a)
Taxes                                                            Section 3.7(a)
Third Party                                                      Section 5.3(a)
Transfer Taxes                                                   Section 5.25

                                       vi

<PAGE>

                         AGREEMENT AND PLAN OF MERGER


    AGREEMENT AND PLAN OF MERGER (the "Agreement"), dated as of September 1,
1997, by and among DOUBLETREE CORPORATION, a Delaware corporation
("Doubletree"), PROMUS HOTEL CORPORATION, a Delaware corporation ("Promus") and
PARENT HOLDING CORP., a newly-formed Delaware corporation with nominal
capitalization, one-half of the issued and outstanding capital stock of which is
nominally owned by each of Doubletree and Promus ("Parent").

    WHEREAS, the Boards of Directors of Doubletree and Promus deem it advisable
and in the best interests of each corporation and its respective stockholders
that Doubletree and Promus combine in a "merger of equals" in order to advance
the interests of Doubletree and Promus and their respective stockholders;

    WHEREAS, the combination of Doubletree and Promus shall be effected by the
terms of this Agreement through (i) a merger of a wholly-owned subsidiary of
Parent with and into Doubletree and (ii) a merger of another wholly-owned
subsidiary of Parent with and into Promus, such that Doubletree and Promus
become wholly-owned subsidiaries of Parent and the stockholders of Doubletree
and Promus become stockholders of Parent;

    WHEREAS, concurrently with the execution and delivery of this Agreement and
as a condition and inducement to each of Doubletree's and Promus's willingness
to enter into this Agreement, Doubletree and Promus have entered into (i) a
Stock Option Agreement dated as of the date of this Agreement and attached
hereto as Exhibit A (the "Doubletree Stock Option Agreement"), pursuant to which
Promus granted Doubletree an option to purchase shares of common stock of Promus
under certain circumstances, and (ii) a Stock Option Agreement dated as of the
date of this Agreement and attached hereto as Exhibit B (the "Promus Stock
Option Agreement" and, together with the Doubletree Stock Option Agreement, the
"Stock Option Agreements"), pursuant to which Doubletree granted Promus an
option to purchase shares of common stock of Doubletree under certain
circumstances;

    WHEREAS, concurrently with the execution and delivery of this Agreement and
as a condition and inducement to Promus's willingness to enter into this
Agreement, certain stockholders of Doubletree have entered into a Stockholder
Support Agreement with Promus dated as of the date of this Agreement and
attached hereto as Exhibit C (the "Stockholder Support Agreement"), pursuant to
which such stockholders have agreed, among other things, to vote all voting
securities of Doubletree beneficially owned by them in favor of approval and
adoption of the Agreement and the Doubletree Merger (as defined in Section 1.2);

    WHEREAS, for Federal income tax purposes, it is intended that (i) the
Doubletree Merger shall qualify as a reorganization described in Section 368(a)
of the Internal Revenue Code of 1986, as amended (the "Code") and/or, taken
together with the Promus Merger (as defined in Section 1.3), as a transfer of
property to Parent by holders of Doubletree Common Stock (as defined in Section
2.1) described in Section 351 of the Code and (ii) the Promus Merger shall
qualify as a reorganization described in Section 368(a) of the Code and/or,
taken

                                       1
<PAGE>

together with the Doubletree Merger, as a transfer of property to Parent
by holders of Promus Common Stock described in Section 351 of the Code;

    WHEREAS, for accounting purposes, it is intended that the transactions
contemplated by this Agreement shall be accounted for as a pooling of interests;
and

    WHEREAS, the Boards of Directors of Doubletree and Promus have approved
this Agreement, the Stock Option Agreements and the Stockholder Support
Agreement.

    NOW, THEREFORE, in consideration of the foregoing and the respective
representations, warranties, covenants and agreements set forth below, the
parties agree as follows:

                                  ARTICLE I.


                                 THE MERGERS

    Section 1.1  CERTIFICATE OF INCORPORATION AND BYLAWS OF PARENT.  
Doubletree and Promus shall cause the Certificate of Incorporation and Bylaws 
of Parent to be amended prior to the Effective Time (as defined in Section 
1.4) to be substantially in the form of Exhibit D and Exhibit E hereto, 
respectively.  From the date hereof until the Effective Time, Doubletree and 
Promus shall consult with each other prior to causing or permitting Parent to 
take any action and neither shall cause or permit Parent to take any action 
inconsistent with the provisions of this Agreement without the written 
consent of the other.

    Section 1.2  THE DOUBLETREE MERGER.  Doubletree and Promus shall cause
Parent to form a wholly-owned subsidiary named Doubletree Acquisition Corp.
("Doubletree Sub") under the laws of the State of Delaware.  Doubletree and
Promus will cause Parent to cause Doubletree Sub to execute and deliver this
Agreement.  Upon the terms and subject to the provisions of this Agreement, and
in accordance with the Delaware General Corporation Code (the "DGCL"),
Doubletree Sub will merge with and into Doubletree (the "Doubletree Merger") at
the Effective Time (as defined in Section 1.4).  Doubletree Sub will be formed
solely to facilitate the Doubletree Merger and will conduct no business or
activity other than in connection with the Doubletree Merger.

    Section 1.3  THE PROMUS MERGER.  Doubletree and Promus shall cause Parent
to form a wholly-owned subsidiary named Promus Acquisition Corp. ("Promus Sub")
under the laws of the State of Delaware.  Doubletree and Promus will cause
Parent to cause Promus Sub to execute and deliver this Agreement.  Upon the
terms and subject to the provisions of this Agreement, and in accordance with
the DGCL, Promus Sub will merge with and into Promus (the "Promus Merger" and
together with the Doubletree Merger, the "Mergers") at the Effective Time (as
defined in Section 1.4).  Promus Sub will be formed solely to facilitate the
Promus Merger and will conduct no business or activity other than in connection
with the Promus Merger.

    Section 1.4  EFFECTIVE TIME OF THE MERGERS.  Subject to the provisions of 
this Agreement, a certificate of merger with respect to each Merger in such 
form as is required by the

                                       2
<PAGE>

relevant provisions of the DGCL (individually, a "Certificate of Merger" with 
respect to one of the Mergers, and collectively with respect to both Mergers, 
the "Certificates of Merger") shall be duly prepared, executed and 
acknowledged and thereafter delivered to the Secretary of State of the State 
of Delaware for filing, as provided in the DGCL, as early as practicable on 
the Closing Date (as defined in Section 1.5).  Each Merger shall become 
effective at such time as is specified in the Certificate of Merger (the time 
at which both Mergers have become fully effective being hereinafter referred 
to as the "Effective Time").

    Section 1.5  CLOSING.  The closing of the Mergers (the "Closing") will take
place at such time and place to be agreed upon by the parties hereto, on a date
to be specified by Promus and Doubletree, which shall be no later than the
second business day after satisfaction or, if permissible, waiver of the
conditions set forth in Article VI (the "Closing Date"), unless another date is
agreed to in writing by Promus and Doubletree.

    Section 1.6  EFFECT OF THE MERGERS.  As a result of the Doubletree Merger,
the separate corporate existence of Doubletree Sub shall cease and Doubletree
shall continue as the surviving corporation (the "Doubletree Surviving
Corporation"). As a result of the Promus Merger, the separate corporate
existence of Promus Sub shall cease and Promus shall continue as the surviving
corporation (the "Promus Surviving Corporation" and together with the Doubletree
Surviving Corporation, the "Surviving Corporations").  Upon becoming effective,
the Mergers shall have the effects set forth in the DGCL.  Without limiting the
generality of the foregoing, and subject thereto, at the Effective Time, (i) all
properties, rights, privileges, powers and franchises of Doubletree and
Doubletree Sub shall vest in the Doubletree Surviving Corporation, and all
debts, liabilities and duties of Doubletree and Doubletree Sub shall become the
debts, liabilities and duties of the Doubletree Surviving Corporation and (ii)
all properties, rights, privileges, powers and franchises of Promus and Promus
Sub shall vest in the Promus Surviving Corporation, and all debts, liabilities
and duties of Promus and Promus Sub shall become the debts, liabilities and
duties of the Promus Surviving Corporation.

    Section 1.7  CERTIFICATE OF INCORPORATION AND BYLAWS OF THE SURVIVING
CORPORATIONS.  At the Effective Time, (i) the Certificate of Incorporation
and Bylaws of the Doubletree Surviving Corporation shall be amended to be
identical to the Certificate of Incorporation and Bylaws, respectively, of
Doubletree Sub as in effect immediately prior to the Effective Time (except that
the name of the Doubletree Surviving Corporation shall be Doubletree Inc.), in
each case until duly amended in accordance with applicable law, and (ii) the
Certificate of Incorporation and Bylaws of the Promus Surviving Corporation
shall be amended to be identical to the Certificate of Incorporation and Bylaws,
respectively, of Promus Sub as in effect immediately prior to the Effective Time
(except that the name of the Promus Surviving Corporation shall be Promus
Acquisition Corp.), in each case until duly amended in accordance with
applicable law.

    Section 1.8  DIRECTORS AND OFFICERS OF THE SURVIVING CORPORATIONS

       (a)    DOUBLETREE SURVIVING CORPORATION.  The directors of Doubletree 
Sub immediately prior to the Effective Time shall be the initial directors of 
the Doubletree Surviving Corporation, each to hold office in accordance with 
the Certificate of Incorporation and Bylaws of the Doubletree Surviving 
Corporation. The officers of Doubletree immediately prior to the

                                       3
<PAGE>

Effective Time shall be the initial officers of the Doubletree Surviving 
Corporation, each to hold office in accordance with the Certificate of 
Incorporation and Bylaws of the Doubletree Surviving Corporation.

       (b)    PROMUS SURVIVING CORPORATION. The directors of Promus Sub
immediately prior to the Effective Time shall be the initial directors of the
Promus Surviving Corporation, each to hold office in accordance with the
Certificate of Incorporation and Bylaws of the Promus Surviving Corporation. 
The officers of Promus immediately prior to the Effective Time shall be the
initial officers of the Promus Surviving Corporation, each to hold office in
accordance with the Certificate of Incorporation and Bylaws of the Promus
Surviving Corporation.

                                ARTICLE II.

                           CONVERSION OF SECURITIES

    Section 2.1  CONVERSION OF DOUBLETREE CAPITAL STOCK.  At the Effective 
Time, by virtue of the Doubletree Merger and without any action on the part 
of any of the parties hereto or the holders of any shares of Common Stock, 
par value $.01 per share, of Doubletree ("Doubletree Common Stock") or common 
stock of Doubletree Sub: 

       (a)    CAPITAL STOCK OF DOUBLETREE SUB.  Each issued and outstanding 
share of the common stock, par value $.01 per share, of Doubletree Sub shall 
be converted into and become one fully paid and nonassessable share of Common 
Stock, par value $.01 per share, of the Doubletree Surviving Corporation.

       (b)    CANCELLATION OF TREASURY STOCK AND PROMUS-OWNED STOCK.  All 
shares of Doubletree Common Stock that are owned by Doubletree as treasury 
stock and any shares of Doubletree Common Stock owned by Promus or any 
wholly-owned Subsidiary (as defined in Section 3.1) of Promus shall be 
canceled and retired and shall cease to exist and no stock of Parent or other 
consideration shall be delivered in exchange therefor.

       (c)    EXCHANGE RATIO FOR DOUBLETREE COMMON STOCK.  Subject to
Section 2.4(e), each issued and outstanding share of Doubletree Common Stock
(other than shares to be canceled in accordance with Section 2.1(b)) shall be
converted into the right to receive one share (the "Doubletree Exchange Ratio")
of Common Stock, par value $.01 per share, of Parent ("Parent Common Stock"). 
All such shares of Doubletree Common Stock, when so converted, shall no longer
be outstanding and shall automatically be canceled and retired and shall cease
to exist, and each holder of a certificate representing any such shares shall
cease to have any ownership or other rights with respect thereto, except the
right to receive the shares of Parent Common Stock and an amount equal to
certain dividends and other distributions described in Section 2.4(c), without
interest, upon the surrender of such certificate in accordance with Section 2.4.

    Section 2.2  CONVERSION OF PROMUS CAPITAL STOCK.  At the Effective Time, 
by virtue of the Promus Merger and without any action on the part of any of 
the parties hereto or the holders

                                       4
<PAGE>

of any shares  of Common Stock, par value $.10 per share, of Promus ("Promus 
Common Stock") or common stock of Promus Sub: 

       (a)    CAPITAL STOCK OF PROMUS SUB.  Each issued and outstanding share 
of the common stock, par value $.01 per share, of Promus Sub shall be 
converted into and become one fully paid and nonassessable share of Common 
Stock, par value $.01 per share, of the Promus Surviving Corporation.

       (b)    CANCELLATION OF TREASURY STOCK AND DOUBLETREE-OWNED STOCK.  All 
shares of Promus Common Stock that are owned by Promus as treasury stock and 
any shares of Promus Common Stock owned by Doubletree or any wholly-owned 
Subsidiary (as defined in Section 3.1) of Doubletree shall be canceled and 
retired and shall cease to exist and no stock of Parent or other 
consideration shall be delivered in exchange therefor.

       (c)    EXCHANGE RATIO FOR PROMUS COMMON STOCK.  Subject to Section 
2.4(e), each issued and outstanding share of Promus Common Stock (other than 
shares to be canceled in accordance with Section 2.2(b)) shall be converted 
into the right to receive 0.925 shares (the "Promus Exchange Ratio") of 
Parent Common Stock. All such shares of Promus Common Stock, when so 
converted, shall no longer be outstanding and shall automatically be canceled 
and retired and shall cease to exist, and each holder of a certificate 
representing any such shares shall cease to have any ownership or other 
rights with respect thereto, except the right to receive the shares of Parent 
Common Stock, any cash in lieu of fractional shares of Parent Common Stock to 
be issued or paid in consideration therefor and an amount equal to certain 
dividends and other distributions described in Section 2.4(c), in each case 
upon the surrender of such certificate in accordance with Section 2.4 and 
without interest.

    Section 2.3  CANCELLATION OF PARENT STOCK.  At the Effective Time, by 
virtue of the Mergers and without any action on the part of any holder of any 
capital stock of Doubletree, Promus or Parent, each share of Parent Common 
Stock issued and outstanding immediately prior to the Effective Time shall be 
surrendered and canceled, and the amount paid by Doubletree and Promus for 
the shares of Parent Common Stock held by them shall be returned by Parent to 
them.

    Section 2.4  EXCHANGE OF CERTIFICATES.  The procedures for exchanging 
certificates which prior to the Effective Time represented shares of 
Doubletree Common Stock and Promus Common Stock for certificates representing 
Parent Common Stock pursuant to the Mergers are as follows:

       (a)    EXCHANGE AGENT.  As of the Effective Time, Parent shall deposit 
with a bank or trust company designated by Promus and Doubletree (the 
"Exchange Agent"), for the benefit of the holders of shares of Doubletree 
Common Stock and shares of Promus Common Stock outstanding immediately prior 
to the Effective Time, for exchange in accordance with this Section 2.4, 
through the Exchange Agent, certificates representing the shares of Parent 
Common Stock and, with respect to shares of Promus Common Stock, cash in lieu 
of fractional shares (such shares of Parent Common Stock and cash in lieu of 
fractional shares, together with any dividends or distributions with respect 
thereto, being hereinafter referred to as the "Exchange

                                       5
<PAGE>

Fund"), issuable pursuant to Sections 2.1 and 2.2 in exchange for shares of 
Doubletree Common Stock and Promus Common Stock, respectively, outstanding 
immediately prior to the Effective Time.

       (b)    EXCHANGE PROCEDURES.  As soon as reasonably practicable after 
the Effective Time, the Exchange Agent shall mail to each holder of record of 
a certificate or certificates which immediately prior to the Effective Time 
represented outstanding shares of Doubletree Common Stock or Promus Common 
Stock (collectively, the "Certificates") whose shares were converted pursuant 
to Section 2.1 or Section 2.2 into the right to receive shares of Parent 
Common Stock (i) a letter of transmittal (which shall specify that delivery 
shall be effected, and risk of loss and title to the Certificates shall pass, 
only upon delivery of the Certificates to the Exchange Agent and shall be in 
such form and have such other provisions as Doubletree and Promus may 
reasonably specify) and (ii) instructions for effecting the surrender of the 
Certificates in exchange for certificates representing shares of Parent 
Common Stock (plus cash in lieu of fractional shares, if any, of Parent 
Common Stock as provided below).  Upon surrender of a Certificate for 
cancellation to the Exchange Agent or to such other agent or agents as may be 
appointed by Parent, together with such letter of transmittal, duly executed, 
the holder of such Certificate shall be entitled to receive in exchange 
therefor a certificate representing that number of whole shares of Parent 
Common Stock, the amount of any cash payable in lieu of fractional shares of 
Parent Common Stock (with respect to shares of Promus Common Stock) and an 
amount equal to certain dividends and other distributions which such holder 
has the right to receive pursuant to the provisions of this Article II, and 
the Certificate so surrendered shall immediately be canceled. In the event of 
a transfer of ownership of Doubletree Common Stock or Promus Common Stock 
prior to the Effective Time which is not registered in the transfer records 
of Doubletree or Promus, respectively, a certificate representing the number 
of shares of Parent Common Stock issuable and any amounts payable in 
accordance with this Agreement may be issued and paid to a transferee if the 
Certificate representing such Doubletree Common Stock or Promus Common Stock 
is presented to the Exchange Agent, accompanied by all documents required to 
evidence and effect such transfer and by evidence that any applicable stock 
transfer taxes have been paid.

       (c)    DISTRIBUTIONS WITH RESPECT TO UNEXCHANGED SHARES.  No amount in 
respect of dividends or other distributions declared or made after the 
Effective Time with respect to Parent Common Stock with a record date after 
the Effective Time shall be paid to the holder of any unsurrendered 
Certificate with respect to the shares of Parent Common Stock the holder 
thereof is entitled to receive in respect thereof and no cash payment in lieu 
of fractional shares shall be paid to any such holder pursuant to subsection 
(e) below until the holder of record of such Certificate shall surrender such 
Certificate to Parent in accordance herewith.  Subject to the effect of 
applicable laws, following surrender of any such Certificate, there shall be 
paid to the record holder of the certificates representing whole shares of 
Parent Common Stock issued in exchange therefor, without interest, (i) at the 
time of such surrender, the amount of any cash payable in lieu of a 
fractional share of Parent Common Stock to which such holder is entitled 
pursuant to subsection (e) below and an amount equal to the amount of 
dividends or other distributions with a record date after the Effective Time 
previously paid with respect to whole shares of Parent Common Stock, and (ii) 
at the appropriate payment date, an amount equal to the amount of dividends 
or other distributions with a record date after the Effective Time but prior 
to surrender 

                                       6

<PAGE>

and a payment date subsequent to surrender payable with respect to whole 
shares of Parent Common Stock, in each case without interest.

    (d)  NO FURTHER OWNERSHIP RIGHTS IN DOUBLETREE COMMON STOCK AND PROMUS 
COMMON STOCK. All shares of Parent Common Stock issued upon the surrender for 
exchange of Certificates in accordance with the terms hereof (including any 
cash paid pursuant to subsection (c) or (e) of this Section 2.4) shall be 
deemed to have been issued in full satisfaction of all rights pertaining to 
the shares of Doubletree Common Stock or Promus Common Stock theretofore 
represented by such Certificates, subject, however, to the applicable 
Surviving Corporation's obligation to pay any dividends or make any other 
distributions with a record date prior to the Effective Time which may have 
been declared or made by Doubletree on such shares of Doubletree Common Stock 
or by Promus on such shares of Promus Common Stock, as the case may be, in 
accordance with the terms of this Agreement (to the extent permitted under 
Section 5.1) prior to the date hereof and which remain unpaid at the 
Effective Time, and from and after the Effective Time there shall be no 
further registration of transfers on the stock transfer books of the 
Doubletree Surviving Corporation or the Promus Surviving Corporation, as the 
case may be, of the shares of Doubletree Common Stock or Promus Common Stock, 
respectively, which were outstanding immediately prior to the Effective Time. 
If, after the Effective Time, Certificates are presented to one of the 
Surviving Corporations or Parent for any reason, such Certificates shall be 
canceled and exchanged as provided in this Section 2.4.

    (e)  NO FRACTIONAL SHARES. No certificate or scrip representing 
fractional shares of Parent Common Stock shall be issued upon the surrender 
for exchange of Certificates representing shares of Promus Common Stock, and 
such fractional share interests will not entitle the owner thereof to vote or 
to any other rights of a stockholder of Parent.  Notwithstanding any other 
provision of this Agreement, each holder of shares of Promus Common Stock 
outstanding immediately prior to the Effective Time exchanged pursuant to the 
Promus Merger who would otherwise have been entitled to receive a fraction of 
a share of Parent Common Stock (after taking into account all Certificates 
delivered by such holder) shall receive, in lieu thereof, cash (without 
interest) in an amount equal to such fractional part of a share of Parent 
Common Stock multiplied by the per share sales price of Parent Common Stock 
(as reported on the New York Stock Exchange Composite Tape) on the closing of 
the first day of regular-way trading of Parent Common Stock on the New York 
Stock Exchange (the "NYSE") after the Effective Time.

    (f)  TERMINATION OF EXCHANGE FUND. Any portion of the Exchange Fund which 
remains undistributed to the former stockholders of Doubletree or Promus for 
180 days after the Effective Time shall be delivered to Parent upon demand, 
and any former stockholder of Doubletree or Promus who has not previously 
complied with this Section 2.4 shall thereafter look only to Parent for 
payment of such former stockholder's claim for Parent Common Stock, any cash 
in lieu of fractional shares of Parent Common Stock and any amounts in 
respect of dividends or distributions with respect to Parent Common Stock. 

    (g) NO LIABILITY. None of Doubletree, Promus, Parent or the Exchange 
Agent shall be liable to any holder of shares of Doubletree Common Stock or 
Promus Common Stock, as the case may be, for any shares of Parent Common 
Stock (or cash in lieu of fractional shares of 

                                  7

<PAGE>

Parent Common Stock or any dividends or distributions with respect thereto) 
delivered to a public official pursuant to any applicable abandoned property, 
escheat or similar law.

    (h) WITHHOLDING RIGHTS. Parent and each of the Surviving Corporations 
shall be entitled to deduct and withhold from the consideration otherwise 
payable pursuant to this Agreement to any holder of Certificates which prior 
to the Effective Time represented shares of Doubletree Common Stock or Promus 
Common Stock such amounts as it is required to deduct and withhold with 
respect to the making of such payment under the Code, or any provision of 
state, local or foreign tax law.  To the extent that amounts are so withheld 
by Parent or one of the Surviving Corporations, as the case may be, such 
withheld amounts shall be treated for all purposes of this Agreement as 
having been paid to the holder of the shares of Doubletree Common Stock or 
Promus Common Stock, as the case may be, in respect of which such deduction 
and withholding was made.

    (i) LOST CERTIFICATES. If any Certificate shall have been lost, stolen or 
destroyed, upon the making of an affidavit of that fact by the person 
claiming such Certificate to be lost, stolen or destroyed and, if required by 
Parent or one of the Surviving Corporations, the posting by such person of a 
bond in such reasonable amount as Parent or such Surviving Corporation may 
direct as indemnity against any claim that may be made against it with 
respect to such Certificate, the Exchange Agent will issue in exchange for 
such lost, stolen or destroyed Certificate the shares of Parent Common Stock 
and any cash in lieu of fractional shares, and unpaid dividends and 
distributions on shares of Parent Common Stock deliverable in respect thereof 
pursuant to this Agreement.

    (j) AFFILIATES. Notwithstanding anything herein to the contrary, 
Certificates surrendered for exchange by any Affiliate (as defined in Section 
5.12) of Doubletree or Promus shall not be exchanged until (i) Parent has 
received an Affiliate Agreement (as defined in Section 5.12) from such 
Affiliate or (ii) until the later of such date as such shares of Parent 
Common Stock are freely tradable without jeopardizing the pooling of 
interests accounting treatment of the Mergers and without violating the 
Securities Act of 1933, as amended (the "Securities Act").


                            ARTICLE III.

             REPRESENTATIONS AND WARRANTIES OF DOUBLETREE

    Doubletree represents and warrants to Promus that the statements 
contained in this Article III are true and correct except as set forth herein 
and in the disclosure schedule delivered by Doubletree to Promus on or before 
the date of this Agreement (the "Doubletree Disclosure Schedule").  The 
Doubletree Disclosure Schedule shall be arranged in paragraphs corresponding 
to the numbered and lettered paragraphs contained in this Article III and the 
disclosure in any paragraph shall qualify other paragraphs in this Article 
III only to the extent that it is reasonably apparent from a reading of such 
disclosure that it also qualifies or applies to such other paragraphs.  

    Section 3.1. ORGANIZATION OF DOUBLETREE. Each of Doubletree and its 
Subsidiaries (as defined below) is duly organized, validly existing and in 
good standing under the laws of the 

                                   8

<PAGE>

jurisdiction of its organization, has all requisite power to own, lease and 
operate its property and to carry on its business as now being conducted and 
as proposed to be conducted, and is duly qualified to do business and is in 
good standing as a foreign corporation or other entity in each jurisdiction 
in which the failure to be so qualified would have a material adverse effect 
on the business, properties, financial condition or results of operations of 
Doubletree and its Subsidiaries, taken as a whole (an "Doubletree Material 
Adverse Effect").  A true and correct copy of the Certificate of 
Incorporation and Bylaws of Doubletree has been delivered to Promus.  Except 
as set forth in Doubletree SEC Reports (as defined in Section 3.4) filed 
prior to the date hereof, neither Doubletree nor any of its Subsidiaries 
directly or indirectly owns (other than ownership interests in Doubletree or 
in one or more of its Subsidiaries) any equity or similar interest in, or any 
interest convertible into or exchangeable or exercisable for, any 
corporation, partnership, joint venture or other business association or 
entity, excluding (i) securities in any publicly traded company held for 
investment by Doubletree and comprising less than five percent (5%) of the 
outstanding stock of such company and (ii) any investment or series of 
related investments with a book value of less than $15 million.  As used in 
this Agreement, the word "Subsidiary" means, with respect to any party, any 
corporation or other organization, whether incorporated or unincorporated, of 
which (i) such party or any other Subsidiary of such party is a general 
partner (excluding partnerships the general partnership interests of which 
held by such party or any Subsidiary of such party do not have a majority of 
the economic interests in such partnership) or (ii) at least a majority of 
the securities or other interests having by their terms ordinary voting power 
to elect a majority of the Board of Directors or others performing similar 
functions with respect to such corporation or other organization is directly 
or indirectly owned or controlled by such party or by any one or more of its 
Subsidiaries, or by such party and one or more of its Subsidiaries.

    Section 3.2. DOUBLETREE CAPITAL STRUCTURE.

      (a)  The authorized capital stock of Doubletree consists of 100,000,000 
shares of Common Stock, $.01 par value, and 5,000,000 shares of Preferred 
Stock, $.01 par value ("Doubletree Preferred Stock").  As of the date hereof, 
(i) 39,688,458 shares of Doubletree Common Stock were issued and outstanding, 
all of which are validly issued, fully paid and nonassessable and (ii) no 
shares of Doubletree Common Stock were held in the treasury of Doubletree or 
by Subsidiaries of Doubletree.  The Doubletree Disclosure Schedule shows the 
number of shares of Doubletree Common Stock reserved for future issuance 
pursuant to stock options granted and outstanding as of the date hereof and 
the plans under which such options were granted (collectively, the 
"Doubletree Stock Plans"). As of the date of this Agreement, none of the 
shares of Doubletree Preferred Stock is issued and outstanding.  There are no 
obligations, contingent or otherwise, of Doubletree or any of its 
Subsidiaries to repurchase, redeem or otherwise acquire any shares of 
Doubletree Common Stock or the capital stock of any Subsidiary or to provide 
funds to or make any material investment (in the form of a loan, capital 
contribution or otherwise) in any such Subsidiary or any other entity other 
than guarantees of bank obligations or indebtedness for borrowed money of 
Subsidiaries entered into in the ordinary course of business and other than 
any obligation the failure of which to perform or satisfy would not have a 
Doubletree Material Adverse Effect.  All of the outstanding shares of capital 
stock or other ownership interests of each of Doubletree's Subsidiaries are 
duly authorized, validly issued, fully paid and nonassessable and all such 
shares (other than directors' qualifying shares in 

                                  9

<PAGE>

the case of foreign Subsidiaries) are owned by Doubletree or another 
Subsidiary of Doubletree free and clear of all security interests, liens, 
claims, pledges, agreements, limitations in Doubletree's voting rights, 
charges or other encumbrances of any nature.  

      (b)  Except as set forth in this Section 3.2 or as reserved for future 
grants of options under the Doubletree Stock Plans or the Promus Stock Option 
Agreement and except for the preferred stock purchase rights issued and 
issuable under the Rights Agreement dated as of September 1, 1997 between 
Doubletree and Harris Trust Company of California (the "Doubletree Rights 
Plan"), options to purchase an aggregate of 20,000 shares of Doubletree 
Common Stock, issued on June 30, 1994, to GE Investment Hotel Partners I, 
Limited Partnership and the Warrants to purchase an aggregate of 262,753 
shares of Doubletree Common Stock, issued on November 8, 1996, to PT 
Investments Inc. (the "GEPT Warrant"), (i) there are no shares of capital 
stock of any class of Doubletree, or any security exchangeable into or 
exercisable for such equity securities, issued, reserved for issuance or 
outstanding; (ii) there are no options, warrants, equity securities, calls, 
rights, commitments or agreements of any character to which Doubletree or any 
of its Subsidiaries is a party or by which it is bound obligating Doubletree 
or any of its Subsidiaries to issue, deliver or sell, or cause to be issued, 
delivered or sold, additional shares of capital stock or other ownership 
interests of Doubletree or any of its Subsidiaries or obligating Doubletree 
or any of its Subsidiaries to grant, extend, accelerate the vesting of or 
enter into any such option, warrant, equity security, call, right, commitment 
or agreement; and (iii) to the best knowledge of Doubletree, there are no 
voting trusts, proxies or other voting agreements or understandings with 
respect to the shares of capital stock of Doubletree.  All shares of 
Doubletree Common Stock subject to issuance as specified in this Section 3.2 
are duly authorized and, upon issuance on the terms and conditions specified 
in the instruments pursuant to which they are issuable, shall be validly 
issued, fully paid and nonassessable.  

    Section 3.3.  AUTHORITY; NO CONFLICT; REQUIRED FILINGS AND CONSENTS.

      (a)  Doubletree has all requisite corporate power and authority to 
enter into this Agreement and the Stock Option Agreements and to consummate 
the transactions contemplated by this Agreement and the Stock Option 
Agreements. The execution and delivery of this Agreement and the Stock Option 
Agreements and the consummation of the transactions contemplated by this 
Agreement and the Stock Option Agreements by Doubletree have been duly 
authorized by all necessary corporate action on the part of Doubletree, 
subject only to the approval and adoption of this Agreement and the 
Doubletree Merger by Doubletree's stockholders under the DGCL.  This 
Agreement and the Stock Option Agreements have been duly executed and 
delivered by Doubletree and constitute the valid and binding obligations of 
Doubletree, enforceable in accordance with their terms, subject to 
bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium and 
similar laws of general applicability relating to or affecting creditors' 
rights and to general equity principles (the "Bankruptcy and Equity 
Exception").

      (b)  The execution and delivery of this Agreement and the Stock Option 
Agreements by Doubletree does not, and the consummation of the transactions 
contemplated by this Agreement and the Stock Option Agreements will not, (i) 
conflict with, or result in any violation or breach of, any provision of the 
Certificate of Incorporation or Bylaws of Doubletree 

                                 10

<PAGE>

or any of its Subsidiaries, (ii) result in any violation or breach of, or 
constitute (with or without notice or lapse of time, or both) a default (or 
give rise to a right of termination, cancellation or acceleration of any 
obligation or loss of any material benefit) under, or require a consent or 
waiver under, any of the terms, conditions or provisions of any note, bond, 
mortgage, indenture, lease, contract or other agreement, instrument or 
obligation to which Doubletree or any of its Subsidiaries is a party or by 
which any of them or any of their properties or assets may be bound (other 
than pursuant to the Credit Agreement dated as of November 8, 1996 by and 
among Doubletree, Morgan Stanley Senior Funding, Inc., The Bank of Nova 
Scotia and the lenders identified therein) or (iii) conflict with or violate 
any permit, concession, franchise, license, judgment, order, decree, statute, 
law, ordinance, rule or regulation applicable to Doubletree or any of its 
Subsidiaries or any of its or their properties or assets, except in the case 
of (ii) and (iii) for any such conflicts, violations, defaults, terminations, 
cancellations or accelerations which (x) are not, individually or in the 
aggregate, reasonably likely to have a Doubletree Material Adverse Effect or 
(y) would not substantially impair or delay the consummation of the 
Doubletree Merger.

      (c) No consent, approval, order or authorization of, or registration, 
declaration or filing with, any court, administrative agency or commission or 
other governmental authority or instrumentality ("Governmental Entity") is 
required by or with respect to Doubletree or any of its Subsidiaries in 
connection with the execution and delivery of this Agreement and the Stock 
Option Agreements or the consummation of the transactions contemplated hereby 
or thereby, except for (i) the filing of the pre-merger notification report 
under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended 
("HSR Act"), (ii) the filing of a Certificate of Merger with respect to the 
Doubletree Merger with the Delaware Secretary of State, (iii) the filing of 
the Joint Proxy Statement/Prospectus (as defined in Section 3.16 below) with 
the Securities and Exchange Commission (the "SEC") in accordance with the 
Securities Exchange Act of 1934, as amended (the "Exchange Act"), and the 
Securities Act, (iv) such consents, approvals, orders, authorizations, 
permits, filings or registrations related to, or arising out of, compliance 
with statutes, rules or regulations regulating the consumption, sale or 
serving of alcoholic beverages, (v) such consents, approvals, orders, 
authorizations, registrations, declarations and filings as may be required 
under applicable state securities laws and the laws of any foreign country 
and (vi) such other consents, authorizations, filings, approvals and 
registrations which, if not obtained or made, would not (x) be reasonably 
likely to have a Doubletree Material Adverse Effect or (y) substantially 
impair or delay the consummation of the Doubletree Merger.

    Section 3.4 SEC FILINGS; FINANCIAL STATEMENTS.

     (a)  Doubletree has filed and made available to Promus all forms, 
reports and documents required to be filed by Doubletree with the SEC since 
January 1, 1996 (collectively, the "Doubletree SEC Reports").  The Doubletree 
SEC Reports (i) at the time filed, complied in all material respects with the 
applicable requirements of the Securities Act and the Exchange Act, as the 
case may be, and (ii) did not at the time they were filed (or if amended or 
superseded by a filing prior to the date of this Agreement, then on the date 
of such filing) contain any untrue statement of a material fact or omit to 
state a material fact required to be stated in such Doubletree SEC Reports or 
necessary in order to make the statements in such Doubletree SEC 

                                  11

<PAGE>

Reports, in the light of the circumstances under which they were made, not 
misleading.  None of Doubletree's Subsidiaries is required to file any forms, 
reports or other documents with the SEC.

      (b)  Each of the consolidated financial statements (including, in each 
case, any related notes) of Doubletree contained in the Doubletree SEC 
Reports complied as to form in all material respects with the applicable 
published rules and regulations of the SEC with respect thereto, was prepared 
in accordance with generally accepted accounting principles applied on a 
consistent basis throughout the periods involved (except as may be indicated 
in the notes to such financial statements or, in the case of unaudited 
statements, as permitted by Form 10-Q under the Exchange Act) and fairly 
presented the consolidated financial position of Doubletree and its 
Subsidiaries as of the dates and the consolidated results of its operations 
and cash flows for the periods indicated, except that the unaudited interim 
financial statements were or are subject to normal and recurring year-end 
adjustments which were not or are not expected to be material in amount.  The 
audited balance sheet of Doubletree as of December 31, 1996 is referred to 
herein as the "Doubletree Balance Sheet."

    Section 3.5  NO UNDISCLOSED LIABILITIES. Except as disclosed in the 
Doubletree SEC Reports filed prior to the date hereof, and except for normal 
or recurring liabilities incurred since December 31, 1996 in the ordinary 
course of business consistent with past practices, Doubletree and its 
Subsidiaries do not have any liabilities, either accrued, contingent or 
otherwise (whether or not required to be reflected in financial statements in 
accordance with generally accepted accounting principles), and whether due or 
to become due, which individually or in the aggregate are reasonably likely 
to have a Doubletree Material Adverse Effect.

    Section 3.6  ABSENCE OF CERTAIN CHANGES OR EVENTS. Except as disclosed in 
the Doubletree SEC Reports filed prior to the date hereof, since the date of 
the Doubletree Balance Sheet, Doubletree and its Subsidiaries have conducted 
their businesses only in the ordinary course and in a manner consistent with 
past practice and, since such date, there has not been (i) any event, 
development, state of affairs or condition, or series or combination of 
events, developments, states of affairs or conditions, which, individually or 
in the aggregate, has had or is reasonably likely to have a Doubletree 
Material Adverse Effect (other than events, developments, states of affairs 
or conditions that are the effect or result of actions taken by Promus or 
economic factors affecting the economy as a whole or the industry in which 
Doubletree competes); (ii) any damage, destruction or loss (whether or not 
covered by insurance) with respect to Doubletree or any of its Subsidiaries 
which is reasonably likely to have a Doubletree Material Adverse Effect; 
(iii) any material change by Doubletree in its accounting methods, principles 
or practices to which Promus has not previously consented in writing; (iv) 
any revaluation by Doubletree of any of its assets which is reasonably likely 
to have a Doubletree Material Adverse Effect; or (v) any other action or 
event that would have required the consent of Promus pursuant to Section 5.1 
of this Agreement had such action or event occurred after the date of this 
Agreement other than such actions or events that, individually or in the 
aggregate, have not had or are not reasonably likely to have a Doubletree 
Material Adverse Effect.

                                   12

<PAGE>

     Section 3.7   TAXES.

         (a)  For the purposes of this Agreement, a "Tax" or, collectively, 
"Taxes," means any and all federal, state, local and foreign taxes, 
assessments and other governmental charges, duties, impositions and 
liabilities, including taxes based upon or measured by gross receipts, 
income, profits, sales, use and occupation, and value added, ad valorem, 
transfer, gains, franchise, withholding, payroll, recapture, employment, 
excise, unemployment insurance, social security, business license, 
occupation, business organization, stamp, environmental and property taxes, 
together with all interest, penalties and additions imposed with respect to 
such amounts.  For purposes of this Agreement, "Taxes" also includes any 
obligations under any agreements or arrangements with any other person with 
respect to Taxes of such other person (including pursuant to Treas. Reg. 
Sections 1.1502-6 or comparable provisions of state, local or foreign tax 
law) and including any liability for Taxes of any predecessor entity.

         (b)  Doubletree and each of its Subsidiaries have (i) filed all 
federal, state, local and foreign Tax returns and reports required to be 
filed by them prior to the date of this Agreement (taking into account all 
applicable extensions), (ii) paid or accrued all Taxes due and payable, and 
(iii) paid or accrued all Taxes for which a notice of assessment or 
collection has been received (other than amounts being contested in good 
faith by appropriate proceedings), except in the case of clauses (i), (ii) or 
(iii) for any such filings, payments or accruals that are not reasonably 
likely, individually or in the aggregate, to have a Doubletree Material 
Adverse Effect.  Neither the Internal Revenue Service (the "IRS") nor any 
other taxing authority has asserted any claim for Taxes, or to the actual 
knowledge of the executive officers of Doubletree, is threatening to assert 
any claims for Taxes, which claims, individually or in the aggregate, are 
reasonably likely to have a Doubletree Material Adverse Effect.  Doubletree 
and each of its Subsidiaries have withheld or collected and paid over to the 
appropriate governmental authorities (or are properly holding for such 
payment) all Taxes required by law to be withheld or collected, except for 
amounts that are not reasonably likely, individually or in the aggregate, to 
have a Doubletree Material Adverse Effect.  Neither Doubletree nor any of its 
Subsidiaries has made an election under Section 341(f) of the Code, except 
for any such election that shall not have a Doubletree Material Adverse 
Effect.  There are no liens for Taxes upon the assets of Doubletree or any of 
its Subsidiaries (other than liens for Taxes that are not yet due or 
delinquent or that are being contested in good faith by appropriate 
proceedings), except for liens that are not reasonably likely, individually 
or in the aggregate, to have a Doubletree Material Adverse Effect.

         (c)  Neither Doubletree nor any of its Subsidiaries is or has been a 
member of an affiliated group of corporations filing a consolidated federal 
income tax return (or a group of corporations filing a consolidated, combined 
or unitary income tax return under comparable provisions of state, local or 
foreign tax law) for any taxable period beginning on or after the taxable 
period ending December 31, 1993, other than a group the common parent of 
which is or was Doubletree or any Subsidiary of Doubletree.

         (d)  Neither Doubletree nor any of its Subsidiaries has any 
obligation under any agreement or arrangement with any other person with 
respect to Taxes of such other person (including pursuant to Treas. Reg. 
Sections 1.1502-6 or comparable provisions of state, local or foreign tax 
law) and including any liability for Taxes of any predecessor entity, except 
for obligations 

                                      13

<PAGE>

that are not reasonably likely, individually or in the aggregate, to have a 
Doubletree Material Adverse Effect.

    Section 3.8    PROPERTIES.

         (a)  Neither Doubletree nor any of its Subsidiaries is in default 
under any leases for real property providing for the occupancy, in each case, 
of (i) a hotel or (ii) other facilities in excess of 50,000 square feet 
(collectively "Material Lease(s)"), except where the existence of such 
defaults, individually or in the aggregate, is not reasonably likely to have 
a Doubletree Material Adverse Effect.

         (b)  With respect to each item of real property that Doubletree or 
any of its Subsidiaries owns, except for such matters that, individually or 
in the aggregate, are not reasonably likely to have a Doubletree Material 
Adverse Effect:  (i) Doubletree or its Subsidiary has good and clear record 
and marketable title to such property, insurable by a recognized national 
title insurance company at standard rates, free and clear of any security 
interest, easement, covenant or other restriction, except for recorded 
easements, covenants and other restrictions which do not materially impair 
the current uses or occupancy of such property; and (ii) the improvements 
constructed on such property are in good condition, and all mechanical and 
utility systems servicing such improvements are in good condition, free in 
each case of material defects.  

    Section 3.9    INTELLECTUAL PROPERTY.  Doubletree owns, or is licensed or 
otherwise possesses legally enforceable rights to use, all trademarks, trade 
names, service marks, copyrights, and any applications for such trademarks, 
trade names, service marks and copyrights, know-how, computer software 
programs or applications and tangible or intangible proprietary information 
or material that are necessary to conduct the business of Doubletree as 
currently conducted, subject to such exceptions that, individually and in the 
aggregate, would not be reasonably likely to have a Doubletree Material 
Adverse Effect.  Doubletree has no knowledge of any assertion or claim 
challenging the validity of any of such intellectual property.

    Section 3.10.  AGREEMENTS, CONTRACTS AND COMMITMENTS.

         (a)  Doubletree has not breached, or received in writing any claim 
or notice that it has breached, any of the terms or conditions of any 
material agreement, contract or commitment filed as an exhibit to the 
Doubletree SEC Reports ("Doubletree Material Contracts") in such a manner as, 
individually or in the aggregate, are reasonably likely to have a Doubletree 
Material Adverse Effect.  Each Doubletree Material Contract that has not 
expired by its terms is in full force and effect.

         (b) Without limiting Section 3.10(a), each of the management 
contracts and franchise agreements to which Doubletree is a party and each of 
Doubletree's Material Leases (i) is valid and binding in accordance with its 
terms and is in full force and effect, (ii) neither Doubletree nor any of its 
Subsidiaries is in default in any material respect thereof, nor does any 
condition exist that with notice or lapses of time or both would constitute a 
material default thereunder, and (iii) no party has given any written or (to 
the knowledge of Doubletree) oral 

                                      14

<PAGE>

notice of termination or cancellation thereof or that such party intends to 
assert a breach thereof, or seek to terminate or cancel, any such agreement, 
contract or lease, in each case as a result of the transactions contemplated 
hereby, subject to such exceptions that, individually and in the aggregate, 
would not be reasonably likely to have a Doubletree Material Adverse Effect.

    Section 3.11.  LITIGATION.  Except as described in the Doubletree SEC
Reports filed prior to the date hereof, there is no action, suit or proceeding,
claim, arbitration or investigation against Doubletree pending or as to which
Doubletree has received any written notice of assertion, which, individually or
in the aggregate, is reasonably likely to have a Doubletree Material Adverse
Effect or a material adverse effect on the ability of Doubletree to consummate
the transactions contemplated by this Agreement.

    Section 3.12.  ENVIRONMENTAL MATTERS.

         (a)  To the knowledge of Doubletree and except as disclosed in the 
Doubletree SEC Reports filed prior to the date hereof and except for such 
matters that, individually or in the aggregate, are not reasonably likely to 
have a Doubletree Material Adverse Effect:  (i) Doubletree and its 
Subsidiaries have complied with all applicable Environmental Laws (as defined 
in Section 3.12(b)); (ii) the properties currently owned or operated by 
Doubletree and its Subsidiaries (including soils, groundwater, surface water, 
buildings or other structures) are not contaminated with any Hazardous 
Substances (as defined in Section 3.12(c)); (iii) the properties formerly 
owned or operated by Doubletree or any of its Subsidiaries were not 
contaminated with Hazardous Substances during the period of ownership or 
operation by Doubletree or any of its Subsidiaries; (iv) neither Doubletree 
nor its Subsidiaries are subject to liability for any Hazardous Substance 
disposal or contamination on any third party property; (v) neither Doubletree 
nor any of its Subsidiaries has been associated with any release or threat of 
release of any Hazardous Substance; (vi) neither Doubletree nor any of its 
Subsidiaries has received any notice, demand, letter, claim or request for 
information alleging that Doubletree or any of its Subsidiaries may be in 
violation of or liable under any Environmental Law; (vii) neither Doubletree 
nor any of its Subsidiaries is subject to any orders, decrees, injunctions or 
other arrangements with any Governmental Entity or is subject to any 
indemnity or other agreement with any third party relating to liability under 
any Environmental Law or relating to Hazardous Substances; and (viii) there 
are no circumstances or conditions involving Doubletree or any of its 
Subsidiaries that could reasonably be expected to result in any claims, 
liability, investigations, costs or restrictions on the ownership, use or 
transfer of any property of Doubletree or any of its Subsidiaries pursuant to 
any Environmental Law.  

         (b)  As used herein, the term "Environmental Law" means any federal, 
state, local or foreign law, regulation, order, decree, permit, 
authorization, opinion, common law or agency requirement relating to:  (A) 
the protection, investigation or restoration of the environment, health and 
safety, or natural resources, (B) the handling, use, presence, disposal, 
release or threatened release of any Hazardous Substance or (C) noise, odor, 
wetlands, pollution, contamination or any injury or threat of injury to 
persons or property.  

         (c)  As used herein, the term "Hazardous Substance" means any 
substance that is:  (A) listed, classified or regulated pursuant to any 
Environmental Law; (B) any petroleum product 

                                      15

<PAGE>

or by-product, asbestos-containing material, lead-containing paint or 
plumbing, polychlorinated biphenyls, radioactive materials or radon; or (C) 
any other substance which is the subject of regulatory action by any 
Governmental Entity pursuant to any Environmental Law.  

    Section 3.13.  EMPLOYEE BENEFIT PLANS.

         (a)  For purposes of this Agreement, the "Doubletree Employee Plans" 
shall mean all employee benefit plans (as defined in Section 3(3) of the 
Employee Retirement Income Security Act of 1974, as amended ("ERISA")) and 
all bonus, stock option, stock purchase, incentive, deferred compensation, 
supplemental retirement, severance and other similar employee benefit plans, 
and all unexpired severance agreements, written or otherwise, for the benefit 
of, or relating to, any current or former employee of Doubletree or any trade 
or business (whether or not incorporated) which is under common control with 
Doubletree within the meaning of Section 414 of the Code (an "ERISA 
Affiliate"), or any Subsidiary of Doubletree (together, the "Doubletree 
Employee Plans"). Doubletree has listed in Section 3.13 of the Doubletree 
Disclosure Schedule all Doubletree Employee Plans other plans that are 
"employee welfare benefit plans" within the meaning of Section 3(1) of ERISA.

         (b)  With respect to each Doubletree Employee Plan, Doubletree has 
made available to Promus, a true and correct copy of (i) the most recent 
annual report (Form 5500) filed with the IRS, (ii) such Doubletree Employee 
Plan and all amendments thereto, (iii) each trust agreement and group annuity 
contract, if any, and all amendments thereto relating to such Doubletree 
Employee Plan and (iv) the most recent actuarial report or valuation relating 
to a Doubletree Employee Plan subject to Title IV of ERISA.  

         (c)  With respect to the Doubletree Employee Plans, individually and 
in the aggregate, no event has occurred, and to the knowledge of Doubletree, 
there exists no condition or set of circumstances in connection with which 
Doubletree could be subject to any liability that is reasonably likely to 
have a Doubletree Material Adverse Effect under ERISA, the Code or any other 
applicable law.

         (d)  With respect to the Doubletree Employee Plans, individually and 
in the aggregate, there are no funded benefit obligations for which 
contributions have not been made or properly accrued and there are no 
unfunded benefit obligations which have not been accounted for by reserves, 
or otherwise properly footnoted in accordance with generally accepted 
accounting principles, on the financial statements of Doubletree, except for 
obligations which, individually or in the aggregate, are not reasonably 
likely to have a Doubletree Material Adverse Effect.

         (e)  Except as disclosed in the Doubletree SEC Reports filed prior 
to the date of this Agreement, and except as provided for in this Agreement, 
neither Doubletree nor any of its Subsidiaries is a party to any oral or 
written (i) agreement with any officer or other key employee of Doubletree or 
any of its Subsidiaries, the benefits of which are contingent, or the terms 
of which are materially altered, upon the occurrence of a transaction 
involving Doubletree of the nature contemplated by this Agreement, (ii) 
agreement with any officer of Doubletree providing any term of employment or 
compensation guarantee extending for a period longer than one year 

                                      16

<PAGE>

from the date hereof and for the payment of compensation in excess of 
$100,000 per annum, or (iii) agreement or plan, including any stock option 
plan, stock appreciation right plan, restricted stock plan or stock purchase 
plan, any of the benefits of which will be increased, the vesting of the 
benefits of which will be accelerated or the funding of benefits of which 
will be required, by the occurrence of any of the transactions contemplated 
by this Agreement or the value of any of the benefits of which will be 
calculated on the basis of any of the transactions contemplated by this 
Agreement.

    Section 3.14.  COMPLIANCE WITH LAWS.  Doubletree has complied with, is 
not in violation of, and has not received any notices of violation with 
respect to, any federal, state or local statute, law or regulation with 
respect to the conduct of its business, or the ownership or operation of its 
business, except for failures to comply or violations which, individually or 
in the aggregate, have not had and are not reasonably likely to have a 
Doubletree Material Adverse Effect.

    Section 3.15   ACCOUNTING AND TAX MATTERS.

         (a)  To the best knowledge of Doubletree, after consulting with its 
independent auditors with respect to clause (i) below and its tax advisors 
with respect to clause (ii) below, neither Doubletree nor any of its 
Affiliates (as defined in Section 5.12) has taken or agreed to take any 
action which would (i) prevent Parent from accounting for the business 
combination to be effected by the Mergers as a pooling of interests or (ii) 
prevent the Doubletree Merger from qualifying as a reorganization described 
in Section 368(a) of the Code and/or, taken together with the Promus Merger, 
as a transfer of property to Parent by holders of Doubletree Common Stock 
described in Section 351 of the Code.  Except as contemplated by the 
Doubletree Option Agreement, neither Doubletree nor any of its Subsidiaries 
owns any shares of Promus Common Stock or other securities convertible into 
shares of Promus Common Stock (exclusive of any shares owned by Doubletree's 
employee benefit plans).

         (b)  To the best knowledge of Doubletree, the stockholders of 
Doubletree as a group have no present plan, intention or arrangement to sell 
or otherwise dispose of such number of the shares of Parent Common Stock 
received in the Doubletree Merger as would reduce their ownership in Parent 
Common Stock to a number of shares having a value, as of the date of the 
Doubletree Merger, of less than eighty percent (80%) of the value of all the 
formerly outstanding stock of Doubletree as of the same date.

    Section 3.16.  REGISTRATION STATEMENT; JOINT PROXY STATEMENT/PROSPECTUS.  
The information to be supplied by Doubletree for inclusion in the 
registration statement on Form S-4 pursuant to which shares of Parent Common 
Stock issued in the Mergers will be registered under the Securities Act (the 
"Registration Statement"), shall not at the time the Registration Statement 
is declared effective by the SEC contain any untrue statement of a material 
fact or omit to state any material fact required to be stated in the 
Registration Statement or necessary in order to make the statements in the 
Registration Statement, in light of the circumstances under which they were 
made, not misleading.  The information supplied by Doubletree for inclusion 
in the joint proxy statement/prospectus to be sent to the stockholders of 
Promus and Doubletree in connection with the meeting of Doubletree's 
stockholders (the "Doubletree Stockholders' Meeting") and the meeting of 
Promus's stockholders (the "Promus Stockholders' Meeting") to consider this 

                                      17

<PAGE>

Agreement and the Mergers (the "Joint Proxy Statement/Prospectus") shall not, 
on the date the Joint Proxy Statement/Prospectus is first mailed to 
stockholders of Doubletree or Promus, at the time of the Doubletree 
Stockholders' Meeting and the Promus Stockholders' Meeting and at the 
Effective Time, contain any statement which, at such time and in light of the 
circumstances under which it shall be made, is false or misleading with 
respect to any material fact, omit to state any material fact necessary in 
order to make the statements made in the Joint Proxy Statement/Prospectus not 
false or misleading, or omit to state any material fact necessary to correct 
any statement in any earlier communication with respect to the solicitation 
of proxies for the Doubletree Stockholders' Meeting or the Promus 
Stockholders' Meeting which has become false or misleading.  If at any time 
prior to the Effective Time any event relating to Doubletree or any of its 
Affiliates, officers or directors should be discovered by Doubletree which 
should be set forth in an amendment to the Registration Statement or a 
supplement to the Joint Proxy Statement/Prospectus, Doubletree shall promptly 
inform Promus.  

    Section 3.17.  LABOR MATTERS.  Except as disclosed in the Doubletree SEC 
Reports filed prior to the date hereof, neither Doubletree nor any of its 
Subsidiaries is a party to or otherwise bound by any collective bargaining 
agreement, contract or other agreement or understanding with a labor union or 
labor organization, nor, as of the date hereof, is Doubletree or any of its 
Subsidiaries the subject of any material proceeding asserting that Doubletree 
or any of its Subsidiaries has committed an unfair labor practice or is 
seeking to compel it to bargain with any labor union or labor organization 
nor, as of the date of this Agreement, is there pending or, to the knowledge 
of the executive officers of Doubletree, threatened, any material labor 
strike, dispute, walkout, work stoppage, slow-down or lockout involving 
Doubletree or any of its Subsidiaries.

    Section 3.18.  INSURANCE.  All material fire and casualty, general 
liability, business interruption, product liability, and sprinkler and water 
damage insurance policies maintained by Doubletree or any of its Subsidiaries 
are with reputable insurance carriers, provide full and adequate coverage for 
all normal risks incident to the business of Doubletree and its Subsidiaries 
and their respective properties and assets, and are in character and amount 
at least equivalent to that carried by persons engaged in similar businesses 
and subject to the same or similar perils or hazards, except for any such 
failures to maintain insurance policies that, individually or in the 
aggregate, are not reasonably likely to have a Doubletree Material Adverse 
Effect.  

    Section 3.19.  DOUBLETREE LONG-RANGE PLANS.  Doubletree has provided to 
Promus copies of Doubletree's most recent long-range plans prepared in draft 
form by Doubletree's management and Doubletree has not adopted any other 
long-range plans since January 1, 1997.

    Section 3.20.  OPINION OF FINANCIAL ADVISOR.  The financial advisor of 
Doubletree, Morgan Stanley & Co. Incorporated, has delivered to Doubletree an 
opinion dated the date of this Agreement to the effect that the Doubletree 
Exchange Ratio is fair to the holders of Doubletree Common Stock from a 
financial point of view.

    Section 3.21.  NO EXISTING DISCUSSIONS.  As of the date hereof, 
Doubletree is not engaged, directly or indirectly, in any discussions or 
negotiations with any other party with respect to an Acquisition Proposal (as 
defined in Section 5.3).

                                      18

<PAGE>

    Section 3.22.  SECTION 203 OF THE DGCL NOT APPLICABLE.  The restrictions 
contained in Section 203 of the DGCL applicable to a "business combination" 
(as defined in DGCL Section 203) will not apply to the authorization, 
execution, delivery and performance of this Agreement or the Stock Option 
Agreements by Doubletree or the Stockholder Support Agreement by the parties 
thereto or the consummation of the Doubletree Merger by Doubletree.  No other 
"fair price," "moratorium," "control share acquisition" or other similar 
anti-takeover statute or regulation is applicable to Doubletree or (by reason 
of Doubletree's participation therein) the Doubletree Merger or the other 
transactions contemplated by this Agreement.

    Section 3.23.  DOUBLETREE RIGHTS PLAN.  Under the terms of the Doubletree 
Rights Plan, neither the execution of this Agreement, the Promus Stock Option 
Agreement, the Stockholder Support Agreement, nor the transactions 
contemplated hereby or thereby, will cause a Distribution Date to occur or 
cause the rights issued pursuant to the Doubletree Rights Plan to become 
exercisable, and all such rights shall become non-exercisable at the 
Effective Time.


                                  ARTICLE IV.

                   REPRESENTATIONS AND WARRANTIES OF PROMUS

    Promus represents and warrants to Doubletree that the statements 
contained in this Article IV are true and correct, except as set forth in the 
disclosure schedule delivered by Promus to Doubletree on or before the date 
of this Agreement (the "Promus Disclosure Schedule").  The Promus Disclosure 
Schedule shall be arranged in paragraphs corresponding to the numbered and 
lettered paragraphs contained in this Article IV and the disclosure in any 
paragraph shall qualify other paragraphs in this Article IV only to the 
extent that it is reasonably apparent from a reading of such document that it 
also qualifies or applies to such other paragraphs.

    Section 4.1    ORGANIZATION OF PROMUS.  Each of Promus and its 
Subsidiaries is duly organized, validly existing and in good standing under 
the laws of the jurisdiction of its organization, has all requisite power to 
own, lease and operate its property and to carry on its business as now being 
conducted and as proposed to be conducted, and is duly qualified to do 
business and is in good standing as a foreign corporation or other entity in 
each jurisdiction in which the failure to be so qualified would have a 
material adverse effect on the business, properties, financial condition or 
results of operations of Promus and its Subsidiaries, taken as a whole (a 
"Promus Material Adverse Effect").  A true and correct copy of the 
Certificate of Incorporation and Bylaws of Promus has been delivered to 
Doubletree.  Except as set forth in the Promus SEC Reports (as defined in 
Section 4.4) filed prior to the date hereof, neither Promus nor any of its 
Subsidiaries directly or indirectly owns (other than ownership interests in 
Promus or in one or more of its Subsidiaries) any equity or similar interest 
in, or any interest convertible into or exchangeable or exercisable for, any 
corporation, partnership, joint venture or other business association or 
entity, excluding (i) securities in any publicly traded company held for 
investment by Promus and comprising less than five percent (5%) of the 
outstanding stock of such company and (ii) any investment or series of 
related investments with a book value of less than $15 million.

                                      19

<PAGE>

    Section 4.2.   PROMUS CAPITAL STRUCTURE.

         (a)  The authorized capital stock of Promus consists of 360,000,000 
shares of Common Stock, $.10 par value, 150,000 shares of Preferred Stock, 
$100.00 par value ("Promus Preferred Stock") and 5,000,000 shares of Special 
Stock, par value $1.12-1/2" ("Promus Special Stock").  As of the date hereof, 
(i) 49,896,911 shares of Promus Common Stock were issued and outstanding, all 
of which are validly issued, fully paid and nonassessable, and (ii) 1,580,101 
additional shares of Promus Common Stock were held in the treasury of Promus 
or by Subsidiaries of Promus.  The Promus Disclosure Schedule shows the 
number of shares of Promus Common Stock reserved for future issuance pursuant 
to stock options granted and outstanding as of the date hereof and the plans 
under which such options were granted (collectively, the "Promus Stock 
Plans").  As of the date of this Agreement, none of the shares of Promus 
Preferred Stock or Promus Special Stock are issued and outstanding.  There 
are no obligations, contingent or otherwise, of Promus or any of its 
Subsidiaries to repurchase, redeem or otherwise acquire any shares of Promus 
Common Stock or the capital stock of any Subsidiary or to provide funds to or 
make any material investment (in the form of a loan, capital contribution or 
otherwise) in any such Subsidiary or any other entity other than guarantees 
of bank obligations or indebtedness for borrowed money of Subsidiaries 
entered into in the ordinary course of business and other than any obligation 
the failure of which to perform or satisfy would not have a Promus Material 
Adverse Effect.  All of the outstanding shares of capital stock or other 
ownership interests of each of Promus's Subsidiaries are duly authorized, 
validly issued, fully paid and nonassessable and all such shares (other than 
directors' qualifying shares in the case of foreign Subsidiaries) are owned 
by Promus or another Subsidiary of  Promus free and clear of all security 
interests, liens, claims, pledges, agreements, limitations in Promus's voting 
rights, charges or other encumbrances of any nature.

         (b)  Except as set forth in this Section 4.2 or as reserved for 
future grants of options under the Promus Stock Plans or the Doubletree Stock 
Option Agreement, and except for the preferred stock purchase rights issued 
and issuable under the Rights Agreement dated as of June 30, 1995 between 
Promus and Continental Stock Transfer & Trust Company (the "Promus Rights 
Plan"), (i) there are no shares of capital stock of any class of Promus, or 
any security exchangeable into or exercisable for such equity securities, 
issued, reserved for issuance or outstanding; (ii) there are no options, 
warrants, equity securities, calls, rights, commitments or agreements of any 
character to which Promus or any of its Subsidiaries is a party or by which 
it is bound obligating Promus or any of its Subsidiaries to issue, deliver or 
sell, or cause to be issued, delivered or sold, additional shares of capital 
stock or other ownership interests of Promus or any of its Subsidiaries or 
obligating Promus or any of its Subsidiaries to grant, extend, accelerate the 
vesting of or enter into any such option, warrant, equity security, call, 
right, commitment or agreement; and (iii) to the best knowledge of Promus, 
there are no voting trusts, proxies or other voting agreements or 
understandings with respect to the shares of capital stock of Promus.  All 
shares of Promus Common Stock subject to issuance as specified in this 
Section 4.2 are duly authorized and, upon issuance on the terms and 
conditions specified in the instruments pursuant to which they are issuable, 
shall be validly issued, fully paid and nonassessable.  

                                      20
<PAGE>

    Section 4.3.  AUTHORITY; NO CONFLICT; REQUIRED FILINGS AND CONSENTS.

      (a)  Promus has all requisite corporate power and authority to enter 
into this Agreement, the Stock Option Agreements and the Stockholder Support 
Agreement and to consummate the transactions contemplated by this Agreement, 
the Stock Option Agreements and the Stockholder Support Agreement.  The 
execution and delivery of this Agreement, the Stock Option Agreements and the 
Stockholder Support Agreement and the consummation of the transactions 
contemplated by this Agreement, the Stock Option Agreements and the 
Stockholder Support Agreement by Promus have been duly authorized by all 
necessary corporate action on the part of Promus, subject only to the 
approval and adoption of this Agreement and the Promus Merger by Promus's 
stockholders under the DGCL.  This Agreement, the Stock Option Agreements and 
the Stockholder Support Agreement have been duly executed and delivered by 
Promus and constitute the valid and binding obligations of Promus, 
enforceable in accordance with their terms, subject to the Bankruptcy and 
Equity Exception.

      (b)  The execution and delivery of this Agreement, the Stock Option 
Agreements and the Stockholder Support Agreement by Promus does not, and the 
consummation of the transactions contemplated by this Agreement, the Stock 
Option Agreements and the Stockholder Support Agreement will not, (i) 
conflict with, or result in any violation or breach of, any provision of the 
Certificate of Incorporation or Bylaws of Promus or any of its Subsidiaries, 
(ii) result in any violation or breach of, or constitute (with or without 
notice or lapse of time, or both) a default (or give rise to a right of 
termination, cancellation or acceleration of any obligation or loss of any 
material benefit) under, or require a consent or waiver under, any of the 
terms, conditions or provisions of any note, bond, mortgage, indenture, 
lease, contract or other agreement, instrument or obligation to which Promus 
or any of its Subsidiaries is a party or by which any of them or any of their 
properties or assets may be bound (other than pursuant to the Tranche A 
Credit Agreement or the Tranche B Credit Agreement, each dated as of June 7, 
1995, as amended, by and among Promus and certain of its subsidiaries and 
NationsBank, N.A. (Carolinas)) or (iii) conflict with or violate any permit, 
concession, franchise, license, judgment, order, decree, statute, law, 
ordinance, rule or regulation applicable to Promus or any of its Subsidiaries 
or any of its or their properties or assets, except in the case of (ii) and 
(iii) for any such conflicts, violations, defaults, terminations, 
cancellations or accelerations which (x) are not, individually or in the 
aggregate, reasonably likely to have a Promus Material Adverse Effect or (y) 
would not substantially impair or delay the consummation of the Promus Merger.

      (c)  No consent, approval, order or authorization of, or registration, 
declaration or filing with, any Governmental Entity is required by or with 
respect to Promus or any of its Subsidiaries in connection with the execution 
and delivery of this Agreement, the Stock Option Agreements and the 
Stockholder Support Agreement or the consummation of the transactions 
contemplated hereby or thereby, except for (i) the filing of the pre-merger 
notification report under the HSR Act, (ii)  the filing of a Certificate of 
Merger with respect to the Promus Merger with the Delaware Secretary of 
State, (iii) the filing of the Joint Proxy Statement/Prospectus with the SEC 
in accordance with the Exchange Act and the Securities Act, (iv) such 
consents, approvals, orders, authorizations, permits, filings, or 
registrations related to, or arising out of, compliance with statutes, rules 
or regulations regulating the consumption, sale or serving of alcoholic 
beverages, (v) such consents, approvals, orders, authorizations, 
registrations,

                                       21
<PAGE>

declarations and filings as may be required under applicable state securities 
laws and the laws of any foreign country and (vi) such other consents, 
authorizations, filings, approvals and registrations which, if not obtained 
or made, would not (x) be reasonably likely to have a Promus Material Adverse 
Effect or (y) substantially impair or delay the consummation of the Promus 
Merger.  

    Section 4.4.  SEC FILINGS; FINANCIAL STATEMENTS.

      (a)  Promus has filed and made available to Doubletree all forms, 
reports and documents required to be filed by Promus with the SEC since 
January 1, 1996 (collectively, the "Promus SEC Reports").  The Promus SEC 
Reports (i) at the time filed, complied in all material respects with the 
applicable requirements of the Securities Act and the Exchange Act, as the 
case may be, and (ii) did not at the time they were filed (or if amended or 
superseded by a filing prior to the date of this Agreement, then on the date 
of such filing) contain any untrue statement of a material fact or omit to 
state a material fact required to be stated in such Promus SEC Reports or 
necessary in order to make the statements in such Promus SEC Reports, in the 
light of the circumstances under which they were make, not misleading.  Other 
than Promus Hotels, Inc., none of Promus's Subsidiaries is required to file 
any forms, reports or other documents with the SEC.  

      (b)  Each of the consolidated financial statements (including, in each 
case, any related notes) of Promus contained in the Promus SEC Reports 
complied as to form in all material respects with the applicable published 
rules and regulations of the SEC with respect thereto, was prepared in 
accordance with generally accepted accounting principles applied on a 
consistent basis throughout the periods involved (except as may be indicated 
in the notes to such financial statements or, in the case of unaudited 
statements, as permitted by Form 10-Q under the Exchange Act) and fairly 
presented the consolidated financial position of Promus and its Subsidiaries 
as of the dates and the consolidated results of its operations and cash flows 
for the periods indicated, except that the unaudited interim financial 
statements were or are subject to normal and recurring year-end adjustments 
which were not or are not expected to be material in amount.  The audited 
balance sheet of Promus as of December 31, 1996 is referred to herein as the 
"Promus Balance Sheet."

    Section 4.5.   NO UNDISCLOSED LIABILITIES.  Except as disclosed in the 
Promus SEC Reports filed prior to the date hereof, and except for normal or 
recurring liabilities incurred since December 31, 1996 in the ordinary course 
of business consistent with past practices, Promus and its Subsidiaries do 
not have any liabilities, either accrued, contingent or otherwise (whether or 
not required to be reflected in financial statements in accordance with 
generally accepted accounting principles), and whether due or to become due, 
which individually or in the aggregate, are reasonably likely to have a 
Promus Material Adverse Effect.

    Section 4.6.  ABSENCE OF CERTAIN CHANGES OR EVENTS.  Except as disclosed 
in the Promus SEC Reports filed prior to the date hereof, since the date of 
the Promus Balance Sheet, Promus and its Subsidiaries have conducted their 
businesses only in the ordinary course and in a manner consistent with past 
practice and, since such date, there has not been (i) any event, development, 
state of affairs or condition, or series or combination of events, 
developments, states of affairs or

                                       22
<PAGE>

conditions, which, individually or in the aggregate, has had or which is 
reasonably likely to have a Promus Material Adverse Effect (other than 
events, developments, states of affairs or conditions that are the effect or 
result of actions taken by Doubletree or economic factors affecting the 
economy as a whole or the industry in which Promus competes); (ii) any 
damage, destruction or loss (whether or not covered by insurance) with 
respect to Promus or any of its Subsidiaries which is reasonably likely to 
have a Promus Material Adverse Effect; (iii) any material change by Promus in 
its accounting methods, principles or practices to which Doubletree has not 
previously consented in writing; (iv) any revaluation by Promus of any of its 
assets which is reasonably likely to have a Promus Material Adverse Effect; 
or (v) any other action or event that would have required the consent of 
Doubletree pursuant to Section 5.1 of this Agreement had such action or event 
occurred after the date of this Agreement, other than such actions or events 
that, individually or in the aggregate, have not had or are not reasonably 
likely to have a Promus Material Adverse Effect.

    Section 4.7.  TAXES.

      (a)  Promus and each of its Subsidiaries have (i) filed all federal, 
state, local and foreign Tax returns and reports required to be filed by them 
prior to the date of this Agreement (taking into account all applicable 
extensions), (ii) paid or accrued all Taxes due and payable, and (iii) paid 
or accrued all Taxes for which a notice of assessment or collection has been 
received (other than amounts being contested in good faith by appropriate 
proceedings), except in the case of clauses (i), (ii) or (iii) for any such 
filings, payments or accruals that are not reasonably likely, individually or 
in the aggregate, to have a Promus Material Adverse Effect.  Neither the IRS 
nor any other taxing authority has asserted any claim for Taxes, or to the 
actual knowledge of the executive officers of Promus, is threatening to 
assert any claims for Taxes, which claims, individually or in the aggregate, 
are reasonably likely to have a Promus Material Adverse Effect.  Promus and 
each of its Subsidiaries have withheld or collected and paid over to the 
appropriate governmental authorities (or are properly holding for such 
payment) all Taxes required by law to be withheld or collected, except for 
amounts that are not reasonably likely, individually or in the aggregate, to 
have a Promus Material Adverse Effect. Neither Promus nor any of its 
Subsidiaries has made an election under Section 341(f) of the Code, except 
for any such election that shall not have a Promus Material Adverse Effect.  
There are no liens for Taxes upon the assets of Promus or any of its 
Subsidiaries (other than liens for Taxes that are not yet due or delinquent 
or that are being contested in good faith by appropriate proceedings), except 
for liens that are not reasonably likely, individually or in the aggregate, 
to have a Promus Material Adverse Effect.

      (b)  Neither Promus nor any of its Subsidiaries is or has been a member 
of an affiliated group of corporations filing a consolidated federal income 
tax return (or a group of corporations filing a consolidated, combined or 
unitary income tax return under comparable provisions of state, local or 
foreign tax law) for any taxable period beginning on or after February 7, 
1990, other than a group the common parent of which is or was The Promus 
Companies Incorporated, Promus or any Subsidiary of Promus.

      (c)  Neither Promus nor any of its Subsidiaries has any obligation 
under any agreement or arrangement with any other person with respect to 
Taxes of such other person

                                       23
<PAGE>

(including pursuant to Treas. Reg. SECTION 1.1502-6 or comparable provisions 
of state, local or foreign tax law) and including any liability for Taxes of 
any predecessor entity, except for obligations that are not reasonably 
likely, individually or in the aggregate, to have an Promus Material Adverse 
Effect.

    Section 4.8.  PROPERTIES.

      (a)  Neither Promus nor any of its Subsidiaries is in default under any 
Material Leases, except where the existence of such defaults, individually or 
in the aggregate, is not reasonably likely to have a Promus Material Adverse 
Effect.

      (b)  With respect to each item of real property that Promus or any of 
its Subsidiaries owns, except for such matters that, individually or in the 
aggregate, are not reasonably likely to have a Promus Material Adverse 
Effect: (i) Promus or its Subsidiary has good and clear record and marketable 
title to such property, insurable by a recognized national title insurance 
company at standard rates, free and clear of any security interest, easement, 
covenant or other restriction, except for recorded easements, covenants and 
other restrictions which do not materially impair the current uses or 
occupancy of such property; and (ii) the improvements constructed on such 
property are in good condition, and all mechanical and utility systems 
servicing such improvements are in good condition, free in each case of 
material defects.

    Section 4.9.  INTELLECTUAL PROPERTY.  Promus owns, or is licensed or 
otherwise possesses legally enforceable rights to use, all trademarks, trade 
names, service marks, copyrights, and any applications for such trademarks, 
trade names, service marks and copyrights, know-how, computer software 
programs or applications, and tangible or intangible proprietary information 
or material that are necessary to conduct the business of Promus as currently 
conducted, subject to such exceptions that, individually and in the 
aggregate, would not be reasonably likely to have a Promus Material Adverse 
Effect.  Promus has no knowledge of any assertion or claim challenging the 
validity of any of such intellectual property.

    Section 4.10.  AGREEMENTS, CONTRACTS AND COMMITMENTS.

      (a)  Promus has not breached, or received in writing any claim or 
notice that it has breached, any of the terms or conditions of any material 
agreement, contract or commitment filed as an exhibit to the Promus SEC 
Reports ("Promus Material Contracts") in such a manner as, individually or in 
the aggregate, are reasonably likely to have a Promus Material Adverse 
Effect.  Each Promus Material Contract that has not expired by its terms is 
in full force and effect.

      (b)  Without limiting Section 4.10(a), each of the management contracts 
and franchise agreements to which Promus is a party and each of Promus's 
Material Leases (i) is valid and binding in accordance with its terms and is 
in full force and effect, (ii) neither Promus nor any of its Subsidiaries is 
in default in any material respect thereof, nor does any condition exist that 
with notice or lapses of time or both would constitute a material default 
thereunder, and (iii) no party has given any written or (to the knowledge of 
Promus) oral notice of termination or cancellation thereof or that such party 
intends to assert a breach thereof, or seek to terminate or cancel, any such 
agreement, contract or lease, in each case as a result of the transactions 

                                       24
<PAGE>

contemplated hereby, subject to such exceptions that, individually and in the 
aggregate, would not be reasonably likely to have a Promus Material Adverse 
Effect.

    Section 4.11.  LITIGATION.  Except as described in the Promus SEC Reports 
filed prior to the date hereof, there is no action, suit or proceeding, 
claim, arbitration or investigation against Promus pending or as to which 
Promus has received any written notice of assertion, which, individually or 
in the aggregate, is reasonably likely to have a Promus Material Adverse 
Effect or a material adverse effect on the ability of Promus to consummate 
the transactions contemplated by this Agreement.

    Section 4.12.  ENVIRONMENTAL MATTERS.  To the knowledge of Promus and 
except as disclosed in the Promus SEC Reports filed prior to the date hereof 
and except for such matters that, individually or in the aggregate, are not 
reasonably likely to have a Promus Material Adverse Effect:  (i) Promus and 
its Subsidiaries have complied with all applicable Environmental Laws; (ii) 
the properties currently owned or operated by Promus and its Subsidiaries 
(including soils, groundwater, surface water, buildings or other structures) 
are not contaminated with any Hazardous Substances; (iii) the properties 
formerly owned or operated by Promus or any of its Subsidiaries were not 
contaminated with Hazardous Substances during the period of ownership or 
operation by Promus or any of its Subsidiaries; (iv) neither Promus nor its 
Subsidiaries are subject to liability for any Hazardous Substance disposal or 
contamination on any third party property; (v) neither Promus nor any of its 
Subsidiaries has been associated with any release or threat of release of any 
Hazardous Substance; (vi) neither Promus nor any of its Subsidiaries has 
received any notice, demand, letter, claim or request for information 
alleging that Promus or any of its Subsidiaries may be in violation of or 
liable under any Environmental Law; (vii) neither Promus nor any of its 
Subsidiaries is subject to any orders, decrees, injunctions or other 
arrangements with any Governmental Entity or is subject to any indemnity or 
other agreement with any third party relating to liability under any 
Environmental Law or relating to Hazardous Substances; and (viii) there are 
no circumstances or conditions involving Promus or any of its Subsidiaries 
that could reasonably be expected to result in any claims, liability, 
investigations, costs or restrictions on the ownership, use or transfer of 
any property of Promus or any of its Subsidiaries pursuant to any 
Environmental Law.

    Section 4.13.  EMPLOYEE BENEFIT PLANS.

      (a)  For purposes of this Agreement, the "Promus Employee Plans" shall 
mean all employee benefit plans (as defined in Section 3(3) of ERISA) and all 
bonus, stock option, stock purchase, incentive, deferred compensation, 
supplemental retirement, severance and other similar employee benefit plans, 
and all unexpired severance agreements, written or otherwise, for the benefit 
of, or relating to, any current or former employee of Promus or any ERISA 
Affiliate of Promus, or any Subsidiary of Promus (together, the "Promus 
Employee Plans"). Promus has listed in Section 4.13 of the Promus Disclosure 
Schedule all Promus Employee Plans other than plans that are "employee 
welfare benefit plans" within the meaning of Section 3(1) of ERISA.

      (b)  With respect to each Promus Employee Plan, Promus has made 
available to Doubletree, a true and correct copy of (i) the most recent 
annual report (Form 5500) filed with the IRS, (ii) such Promus Employee Plan 
and all amendments thereto, (iii) each trust agreement

                                       25
<PAGE>

and group annuity contract, if any, and all amendments thereto relating to 
such Promus Employee Plan and (iv) the most recent actuarial report or 
valuation relating to a Promus Employee Plan subject to Title IV of ERISA.  

      (c)  With respect to the Promus Employee Plans, individually and in the 
aggregate, no event has occurred, and to the knowledge of Promus, there 
exists no condition or set of circumstances in connection with which Promus 
could be subject to any liability that is reasonably likely to have a Promus 
Material Adverse Effect under ERISA, the Code or any other applicable law.  

      (d)  With respect to the Promus Employee Plans, individually and in the 
aggregate, there are no funded benefit obligations for which contributions 
have not been made or properly accrued and there are no unfunded benefit 
obligations which have not been accounted for by reserves, or otherwise 
properly footnoted in accordance with generally accepted accounting 
principles, on the financial statements of Promus, except for obligations 
which, individually or in the aggregate, are not reasonably likely to have a 
Promus Material Adverse Effect.

      (e)  Except as disclosed in the Promus SEC Reports filed prior to the 
date of this Agreement, and except as provided for in this Agreement, neither 
Promus nor any of its Subsidiaries is a party to any oral or written (i) 
agreement with any officer or other key employee of Promus or any of its 
Subsidiaries, the benefits of which are contingent, or the terms of which are 
materially altered, upon the occurrence of a transaction involving Promus of 
the nature contemplated by this Agreement, (ii) agreement with any officer of 
Promus providing any term of employment or compensation guarantee extending 
for a period longer than one year from the date hereof or for the payment of 
compensation in excess of $100,000 per annum, or (iii) agreement or plan, 
including any stock option plan, stock appreciation right plan, restricted 
stock plan or stock purchase plan, any of the benefits of which will be 
increased, the vesting of the benefits of which will be accelerated or the 
funding of benefits of which will be required, by the occurrence of any of 
the transactions contemplated by this Agreement or the value of any of the 
benefits of which will be calculated on the basis of any of the transactions 
contemplated by this Agreement.

    Section 4.14.  COMPLIANCE WITH LAWS.  Promus has complied with, is not in 
violation of, and has not received any notices of violation with respect to, 
any federal, state or local statute, law or regulation with respect to the 
conduct of its business, or the ownership or operation of its business, 
except for failures to comply or violations which, individually or in the 
aggregate, have not had and are not reasonably likely to have a Promus 
Material Adverse Effect.

    Section 4.15.  ACCOUNTING AND TAX MATTERS.

      (a)  To the best knowledge of Promus, after consulting with its 
independent auditors with respect to clause (i) below and its tax advisors 
with respect to clause (ii) below, neither Promus nor any of its Affiliates 
(as defined in Section 5.12) has taken or agreed to take any action which 
would (i) prevent Parent from accounting for the business combination to be 
effected by the Mergers as a pooling of interests, or (ii) prevent the Promus 
Merger from qualifying as a reorganization described in Section 368(a) of the 
Code and/or, taken together

                                       26
<PAGE>

with the Doubletree Merger, as a transfer of property to Parent by holders of 
Promus Common Stock described in Section 351 of the Code.  Except as 
contemplated by the Promus Option Agreement, neither Promus nor any of its 
Subsidiaries owns any shares of Doubletree Common Stock or other securities 
convertible into shares of Doubletree Common Stock (exclusive of any shares 
owned by Promus's employee benefit plans).

      (b)  To the best knowledge of Promus, the stockholders of Promus as a 
group have no present plan, intention or arrangement to sell or otherwise 
dispose of such number of the shares of Parent Common Stock received in the 
Promus Merger as would reduce their ownership in Parent Common Stock to a 
number of shares having a value, as of the date of the Promus Merger, of less 
than eighty percent (80%) of the value of all the formerly outstanding stock 
of Promus as of the same date.

    Section 4.16.  REGISTRATION STATEMENT; JOINT PROXY STATEMENT/PROSPECTUS. 
The information to be supplied by Promus for inclusion in the Registration 
Statement shall not at the time the Registration Statement is declared 
effective by the SEC contain any untrue statement of a material fact or omit 
to state any material fact required to be stated in the Registration 
Statement or necessary in order to make the statements in the Registration 
Statement, in light of the circumstances under which they were made, not 
misleading.  The information to be supplied by Promus for inclusion in the 
Joint Proxy Statement/Prospectus shall not, on the date the Joint Proxy 
Statement/Prospectus is first mailed to stockholders of Promus or Doubletree, 
at the time of the Promus Stockholders' Meeting and the Doubletree 
Stockholder's Meeting and at the Effective Time, contain any statement which, 
at such time and in light of the circumstances under which it shall be made, 
is false or misleading with respect to any material fact, omit to state any 
material fact necessary in order to make the statements made in the Joint 
Proxy Statement/Prospectus not false or misleading, or omit to state any 
material fact necessary to correct any statement in any earlier communication 
with respect to the solicitation of proxies for the Promus Stockholders' 
Meeting or the Doubletree Stockholders' Meeting which has become false or 
misleading.  If at any time prior to the Effective Time any event relating to 
Promus or any of its Affiliates, officers or directors should be discovered 
by Promus which should be set forth in an amendment to the Registration 
Statement or a supplement to the Joint Proxy Statement/Prospectus, Promus 
shall promptly inform Doubletree.

    Section 4.17.  LABOR MATTERS.  Except as disclosed in the Promus SEC 
Reports filed prior to the date hereof, neither Promus nor any of its 
Subsidiaries is a party to or otherwise bound by any collective bargaining 
agreement, contract or other agreement or understanding with a labor union or 
labor organization, nor, as of the date hereof, is Promus or any of its 
Subsidiaries the subject of any material proceeding asserting that Promus or 
any of its Subsidiaries has committed an unfair labor practice or is seeking 
to compel it to bargain with any labor union or labor organization nor, as of 
the date of this Agreement, is there pending or, to the knowledge of the 
executive officers of Promus, threatened, any material labor strike, dispute, 
walkout, work stoppage, slow-down or lockout involving Promus or any of its 
Subsidiaries.  

    Section 4.18.  INSURANCE.  All material fire and casualty, general 
liability, business interruption, product liability, and sprinkler and water 
damage insurance policies maintained by Promus or any of its Subsidiaries are 
with reputable insurance carriers, provide full and adequate

                                       27
<PAGE>

coverage for all normal risks incident to the business of Promus and its 
Subsidiaries and their respective properties and assets, and are in character 
and amount at least equivalent to that carried by persons engaged in similar 
businesses and subject to the same or similar perils or hazards, except for 
any such failures to maintain insurance policies that, individually or in the 
aggregate, are not reasonably likely to have a Promus Material Adverse 
Effect.  

    Section 4.19.  PROMUS LONG-RANGE PLANS.  Promus has provided to 
Doubletree copies of Promus's long-range plans that are substantially 
identical to the long-range plans presented by Promus's management to, and 
adopted by, the Board of Directors of Promus on July 23, 1997, and Promus has 
not adopted any other long-range plans since such date.

    Section 4.20.  OPINION OF FINANCIAL ADVISOR.  The financial advisor of 
Promus, BT Wolfensohn, has delivered to Promus an opinion dated the date of 
this Agreement to the effect that the Promus Exchange Ratio is fair to 
holders of Promus Common Stock from a financial point of view.

    Section 4.21.  NO EXISTING DISCUSSIONS.  As of the date hereof, Promus is 
not engaged, directly or indirectly, in any discussions or negotiations with 
any other party with respect to an Acquisition Proposal.

    Section 4.22.  SECTION 203 OF THE DGCL NOT APPLICABLE.  The restrictions 
contained in Section 203 of the DGCL applicable to a "business combination" 
(as defined in Section DGCL 203) will not apply to the authorization, 
execution, delivery or performance of this Agreement or the Stock Option 
Agreements by Promus or the consummation of the Promus Merger by Promus.  No 
other "fair price," "moratorium," "control share acquisition" or other 
similar anti-takeover statute or regulation is applicable to Promus or (by 
reason of Promus's participation therein) the Promus Merger or the other 
transactions contemplated by this Agreement.

    Section 4.23.  PROMUS RIGHTS PLAN.  Under the terms of the Promus Rights 
Plan, neither the execution of this Agreement or the Doubletree Stock Option 
Agreement, nor the transactions contemplated hereby or thereby will cause a 
Distribution Date to occur or cause the rights issued pursuant to the Promus 
Rights Plan to become exercisable, and all such rights shall become 
non-exercisable at the Effective Time.

                                  ARTICLE V

                                  COVENANTS

    Section 5.1.  CONDUCT OF BUSINESS.  During the period from the date of 
this Agreement and continuing until the earlier of the termination of this 
Agreement or the Effective Time, Doubletree and Promus each agrees as to 
itself and its respective Subsidiaries (except to the extent that the other 
party shall otherwise consent in writing) to carry on its business in the 
usual, regular and ordinary course in substantially the same manner as 
previously conducted, to pay its debts and taxes when due subject to good 
faith disputes over such debts or taxes, to pay or perform its other 
obligations when due, and, to the extent consistent with such business, use 
all reasonable efforts consistent with past practices and policies to 
preserve intact its present

                                       28
<PAGE>

business organization, keep available the services of its present officers 
and key employees and preserve its relationships with customers, suppliers, 
distributors, and others having business dealings with it. Except as 
expressly contemplated by this Agreement or the Stock Option Agreements or as 
set forth in Section 5.1 of the Doubletree Disclosure Schedule, during the 
period from the date of this Agreement and continuing until the earlier of 
the termination of this Agreement or the Effective Time, Doubletree and 
Promus each shall not (and shall not permit any of its respective 
Subsidiaries to), without the written consent of the other party:

      (a)  Accelerate, amend or change the period of exercisability of 
options or restricted stock granted under any employee stock plan of such 
party or authorize cash payments in exchange for any options granted under 
any of such plans except as required by the terms of such plans or any 
related agreements (including severance agreements) in effect as of the date 
of this Agreement;

      (b)  Declare or pay any dividends on or make any other distributions 
(whether in cash, stock or property) in respect of any of its capital stock, 
or split, combine or reclassify any of its capital stock or issue or 
authorize the issuance of any other securities in respect of, in lieu of or 
in substitution for shares of its capital stock, or purchase or otherwise 
acquire, directly or indirectly, any shares of its capital stock except from 
former employees, directors and consultants in accordance with agreements 
providing for the repurchase of shares in connection with any termination of 
service to such party;

      (c)  Issue, deliver or sell, or authorize or propose the issuance, 
delivery or sale of, any shares of its capital stock or securities 
convertible into shares of its capital stock, or subscriptions, rights, 
warrants or options to acquire, or other agreements or commitments of any 
character obligating it to issue any such shares or other convertible 
securities, other than (i) the grant of options consistent with past 
practices to employees or directors, which options represent in the aggregate 
the right to acquire no more than 25,000 shares (net of cancellations) of 
Doubletree Common Stock or Promus Common Stock, as the case may be, (ii) the 
issuance of shares of Doubletree Common Stock or Promus Common Stock, as the 
case may be, pursuant to the exercise of options or warrants outstanding on 
the date of this Agreement, and (iii) the issuance of capital stock under the 
Doubletree Rights Plan or the Promus Rights Plan if required by the 
respective terms thereof;

      (d)  Acquire or agree to acquire by merging or consolidating with, or 
by purchasing a substantial equity interest in or substantial portion of the 
assets of, or by any other manner, any business or any corporation, 
partnership or other business organization or division, or otherwise acquire 
or agree to acquire any assets (other than hotel properties, inventory and 
other immaterial assets, in each case in the ordinary course of business);

      (e)  Sell, lease, license or otherwise dispose of any of its material 
properties or assets, except for transactions (including sales, leases, 
licenses or dispositions of hotel properties, inventory and other immaterial 
assets) in the ordinary course of business;

      (f)  (i) Increase or agree to increase the compensation payable or to 
become payable to its officers or employees, except for increases in salary 
or wages of employees (other

                                       29
<PAGE>

than officers) in accordance with past practices, (ii) grant any additional 
severance or termination pay to, or enter into any employment or severance 
agreements with, any employees or officers, (iii) enter into any collective 
bargaining agreement (other than as required by law or extensions to existing 
agreements in the ordinary course of business), (iv) establish, adopt, enter 
into or amend any bonus, profit sharing, thrift, compensation, stock option, 
restricted stock, pension, retirement, deferred compensation, employment, 
termination, severance or other plan, trust, fund, policy or arrangement for 
the benefit of any directors, officers or employees; 

      (g)  Amend or propose to amend its Certificate of Incorporation or 
Bylaws except as contemplated by this Agreement; 

      (h)  Incur any indebtedness for borrowed money other than in the 
ordinary course of business;

      (i)  Take any action that would or is reasonably likely to result in a 
material breach of any provision of this Agreement or the Stock Option 
Agreements or in any of its representations and warranties set forth in this 
Agreement or the Stock Option Agreements being untrue on and as of the 
Closing Date;

      (j)  Make or rescind any material express or deemed election relating 
to Taxes, settle or compromise any material claim, action, suit, litigation, 
proceeding, arbitration, investigation, audit or controversy relating to 
Taxes, or make any material change to any of its methods of reporting income 
or deductions for federal income tax purposes from those employed in the 
preparation of its federal income tax return for the taxable year ending 
December 31, 1996, except as may be required by applicable law;

      (k)  Settle any litigation relating to the transactions contemplated 
hereby other than any settlement which would not (i) have a Doubletree 
Material Adverse Effect (if settled by Doubletree), a Promus Material Adverse 
Effect (if settled by Promus) or a material adverse effect  on the business, 
properties, financial condition or results of operations of Parent (if 
settled by either Doubletree or Promus) or (ii) adversely effect the 
consummation of the transactions contemplated hereby; or

      (l)  Take, or agree in writing or otherwise to take, any of the actions 
described in Sections (a) through (k) above.

    Section 5.2.  COOPERATION; NOTICE; CURE.  Subject to compliance with 
applicable law, from the date hereof until the Effective Time, each of 
Doubletree and Promus shall confer on a regular and frequent basis with one 
or more representatives of the other party to report on the general status of 
ongoing operations and shall promptly provide the other party or its counsel 
with copies of all filings made by such party with any Governmental Entity in 
connection with this Agreement, the Mergers and the transactions contemplated 
hereby and thereby.  Each of Doubletree and Promus shall promptly notify the 
other in writing of, and will use all commercially reasonable efforts to cure 
before the Closing Date, any event, transaction or circumstance, as soon as 
practical after it becomes known to such party, that causes or will cause any 
covenant or agreement of Doubletree or Promus under this Agreement to be 
breached or that

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<PAGE>

renders or will render untrue any representation or warranty of Doubletree or 
Promus contained in this Agreement.  No notice given pursuant to this 
paragraph shall have any effect on the representations, warranties, covenants 
or agreements contained in this Agreement for purposes of determining 
satisfaction of any condition contained herein.

    Section 5.3.  NO SOLICITATION.

      (a)  Doubletree and Promus each shall not, directly or indirectly, 
through any officer, director, employee, financial advisor, representative or 
agent of such party (i) solicit, initiate, or encourage any inquiries or 
proposals that constitute, or could reasonably be expected to lead to, a 
proposal or offer for a merger, consolidation, business combination, sale of 
substantial assets, sale of shares of capital stock (including without 
limitation by way of a tender offer) or similar transaction involving such 
party or any of its Subsidiaries, other than the transactions contemplated by 
this Agreement (any of the foregoing inquiries or proposals being referred to 
in this Agreement as an "Acquisition Proposal"), (ii) engage in negotiations 
or discussions with any person (or group of persons) other than Doubletree or 
Promus or their respective affiliates (a "Third Party") concerning, or 
provide any non-public information to any person or entity relating to, any 
Acquisition Proposal, or (iii) agree to or recommend any Acquisition 
Proposal; provided, however, that nothing contained in this Agreement shall 
prevent Doubletree or Promus, or their respective Board of Directors, from 
(A) furnishing non-public information to, or entering into discussions or 
negotiations with, any person or entity in connection with an unsolicited 
bona fide written Acquisition Proposal by such person or entity or modifying 
or withdrawing its recommendation with respect to the transactions 
contemplated hereby or recommending an unsolicited bona fide written 
Acquisition Proposal to the stockholders of such party, if and only to the 
extent that (1) the Board of Directors of such party believes in good faith 
(after consultation with its financial advisor) that such Acquisition 
Proposal is reasonably capable of being completed on the terms proposed and, 
after taking into account the strategic benefits anticipated to be derived 
from the Mergers and the prospects of Doubletree and Promus as a combined 
company, would, if consummated, result in a transaction more favorable to the 
stockholders of such party over the long term than the transaction 
contemplated by this Agreement (a "Superior Proposal") and the Board of 
Directors of such party determines in good faith after consultation with 
outside legal counsel that such action is required for such Board of 
Directors to comply with its fiduciary duties to stockholders under 
applicable law and (2) prior to furnishing such non-public information to, or 
entering into discussions or negotiations with, such person or entity, such 
Board of Directors receives from such person or entity an executed 
confidentiality and standstill agreement with terms no less favorable to such 
party than those contained in the Confidentiality Agreements, each dated 
August 16, 1997 between Promus and Doubletree (the "Confidentiality 
Agreements"); or (B) complying with Rule 14e-2 promulgated under the Exchange 
Act with regard to an Acquisition Proposal.  Each of Doubletree and Promus 
agrees not to release any third party from, or waive any provision of, any 
standstill agreement to which it is a party or any confidentiality agreement 
between it and another person who has made, or who may reasonably be 
considered likely to make, an Acquisition Proposal, unless its Board of 
Directors determines in good faith after consultation with outside legal 
counsel that such action is required for such Board of Directors to comply 
with its fiduciary duties to stockholders under applicable law.

                                    31



<PAGE>

     (b)  Doubletree and Promus shall each notify the other party immediately 
after receipt by Doubletree or Promus (or any of their advisors) of any 
Acquisition Proposal or any request for nonpublic information in connection 
with an Acquisition Proposal or for access to the properties, books or 
records of such party by any person or entity that informs such party that it 
is considering making, or has made, an Acquisition Proposal.  Such notice 
shall be made orally and in writing and shall indicate in reasonable detail 
the identity of the offeror and the terms and conditions of such proposal, 
inquiry or contact.  Such party shall continue to keep the other party hereto 
informed, on a current basis, of the status of any such discussions or 
negotiations and the terms being discussed or negotiated.

     Section 5.4  JOINT PROXY STATEMENT/PROSPECTUS; REGISTRATION STATEMENT.

     (a)  As promptly as practical after the execution of this Agreement, 
Doubletree and Promus shall prepare and file with the SEC the Joint Proxy 
Statement/Prospectus and the Registration Statement in which the Joint Proxy 
Statement/Prospectus will be included as a prospectus, provided that 
Doubletree and Promus may delay the filing of the Registration Statement 
until approval of the Joint Proxy Statement/Prospectus by the SEC.  
Doubletree and Promus shall use all reasonable efforts to cause the 
Registration Statement to become effective as soon after such filing as 
practical.  The Joint Proxy Statement/Prospectus shall include the 
recommendation of the Board of Directors of Doubletree in favor of adoption 
of this Agreement and the Doubletree Merger and the recommendation of the 
Board of Directors of Promus in favor of adoption of this Agreement and the 
Promus Merger; provided that the Board of Directors of either party may 
modify or withdraw such recommendation if such Board of Directors believes in 
good faith after consultation with outside legal counsel that the 
modification or withdrawal of such recommendation is required for such Board 
of Directors to comply with its fiduciary duties under applicable law.

     (b)  Doubletree and Promus shall make all necessary filings with respect to
the Merger under the Securities Act, the Exchange Act, applicable state blue sky
laws and the rules and regulations thereunder.

     Section 5.5  NASDAQ QUOTATION AND NYSE LISTING.  Each of Doubletree and 
Promus agrees to continue the quotation and listing of Doubletree Common 
Stock and Promus Common Stock, respectively, on NASDAQ National Market and 
the NYSE, respectively, during the term of this Agreement.

     Section 5.6  ACCESS TO INFORMATION.  Upon reasonable notice, Doubletree 
and Promus shall each (and shall cause each of their respective Subsidiaries 
to) afford to the officers, employees, accountants, counsel and other 
representatives of the other, access, during normal business hours during the 
period prior to the Effective Time, to all its personnel, properties, books, 
contracts, commitments and records and, during such period, each of 
Doubletree and Promus shall, and shall cause each of their respective 
Subsidiaries to, furnish promptly to the other (a) copies of monthly 
financial reports and development reports, (b) a copy of each report, 
schedule, registration statement and other document filed or received by it 
during such period pursuant to the requirements of federal securities laws 
and (c) all other information concerning its business, properties and 
personnel as such other party may reasonably request.  The parties 


                                      32
<PAGE>

will hold any such information which is nonpublic in confidence in accordance 
with the Confidentiality Agreements.  No information or knowledge obtained in 
any investigation pursuant to this Section 5.6 shall affect or be deemed to 
modify any representation or warranty contained in this Agreement or the 
conditions to the obligations of the parties to consummate the Merger.

     Section 5.7  STOCKHOLDERS' MEETINGS.  Doubletree and Promus each shall 
call a meeting of its respective stockholders to be held as promptly as 
practicable for the purpose of voting, in the case of Doubletree, upon this 
Agreement and the Doubletree Merger and, in the case of Promus, upon this 
Agreement and the Promus Merger.  Subject to Sections 5.3 and 5.4, Doubletree 
and Promus shall, through their respective Boards of Directors, recommend to 
their respective stockholders adoption of this Agreement and approval of such 
matters and shall coordinate and cooperate with respect to the timing of such 
meetings and shall use their best efforts to hold such meetings on the same 
day and as soon as practicable after the date hereof.  Unless otherwise 
required to comply with the applicable fiduciary duties of the respective 
directors of Doubletree and Promus, as determined by such directors in good 
faith after consultation with outside legal counsel, each party shall use all 
reasonable efforts to solicit from stockholders of such party proxies in 
favor of such matters.  Doubletree and Promus intend to submit additional 
proposals to their respective stockholders at the Doubletree Stockholders' 
Meeting and the Promus Stockholders' Meeting, respectively, separate from the 
proposals referred to in the first sentence of this Section 5.7.  The 
approval by Doubletree's stockholders or Promus's stockholders, as the case 
may be, of such additional proposals shall not be a condition to the closing 
of the Mergers under this Agreement.

     Section 5.8  LEGAL CONDITIONS TO MERGER.

     (a)  Doubletree and Promus shall each use all reasonable efforts to (i) 
take, or cause to be taken, all appropriate action, and do, or cause to be 
done, all things necessary and proper under applicable law to consummate and 
make effective the transactions contemplated hereby as promptly as 
practicable, (ii) obtain from any Governmental Entity or any other third 
party any consents, licenses, permits, waivers, approvals, authorizations, or 
orders required to be obtained or made by Doubletree or Promus or any of 
their Subsidiaries in connection with the authorization, execution and 
delivery of this Agreement and the consummation of the transactions 
contemplated hereby including, without limitation, the Mergers, and (iii) as 
promptly as practicable, make all necessary filings, and thereafter make any 
other required submissions, with respect to this Agreement and the Mergers 
required under (A) the Securities Act and the Exchange Act, and any other 
applicable federal or state securities laws, (B) the HSR Act and any related 
governmental request thereunder, and (C) any other applicable law.  
Doubletree and Promus shall cooperate with each other in connection with the 
making of all such filings, including providing copies of all such documents 
to the non-filing party and its advisors prior to filing and, if requested, 
to accept all reasonable additions, deletions or changes suggested in 
connection therewith.  Doubletree and Promus shall use their reasonable 
efforts to furnish to each other all information required for any application 
or other filing to be made pursuant to the rules and regulations of any 
applicable law (including all information required to be included in the 
Joint Proxy Statement/Prospectus and the Registration Statement) in 
connection with the transactions contemplated by this Agreement.  


                                      33

<PAGE>

     (b)  Doubletree and Promus agree, and shall cause each of their 
respective Subsidiaries, to cooperate and to use their respective reasonable 
efforts to obtain any government clearances required for Closing (including 
through compliance with the HSR Act and any applicable foreign government 
reporting requirements), to respond to any government requests for 
information, and to contest and resist any action, including any legislative, 
administrative or judicial action, and to have vacated, lifted, reversed or 
overturned any decree, judgment, injunction or other order (whether 
temporary, preliminary or permanent) (an "Order") that restricts, prevents or 
prohibits the consummation of the Mergers or any other transactions 
contemplated by this Agreement. The parties hereto will consult and cooperate 
with one another, and consider in good faith the views of one another, in 
connection with any analyses, appearances, presentations, memoranda, briefs, 
arguments, opinions and proposals made or submitted by or on behalf of any 
party hereto in connection with proceedings under or relating to the HSR Act 
or any other federal, state or foreign antitrust or fair trade law.  
Doubletree and Promus shall cooperate and work together in any proceedings or 
negotiations with any Governmental Entity relating to any of the foregoing.  
Notwithstanding anything to the contrary in this Section 5.8, neither 
Doubletree nor Promus, nor any of their respective Subsidiaries, shall be 
required to take any action that would reasonably be expected to 
substantially impair the overall benefits expected, as of the date hereof, to 
be realized from the consummation of the Mergers.

     (c)  Each of Doubletree and Promus shall give (or shall cause their 
respective Subsidiaries to give) any notices to third parties, and use, and 
cause their respective Subsidiaries to use, all reasonable efforts to obtain 
any third party consents related to or required in connection with the 
Mergers.

     Section 5.9  PUBLIC DISCLOSURE.  Doubletree and Promus shall agree on 
the form and content of the initial press release regarding the transactions 
contemplated hereby and thereafter shall consult with each other before 
issuing, and use all reasonable efforts to agree upon, any press release or 
other public statement with respect to any of the transactions contemplated 
hereby and shall not issue any such press release or make any such public 
statement prior to such consultation, except as may be required by law.

     Section 5.10  NONRECOGNITION EXCHANGE.  From and after the date hereof 
and until the Effective Time, neither Doubletree nor Promus, nor any of their 
respective Subsidiaries or other Affiliates shall knowingly take any action, 
or knowingly fail to take any action, that is reasonably likely to jeopardize 
the treatment of either of the Mergers as a reorganization described in 
Section 368(a) of the Code and/or, taken together with the other of the 
Mergers, as a transfer of property to Parent by holders of Doubletree Common 
Stock or Promus Common Stock, as applicable, described in Section 351 of the 
Code.

     Section 5.11  POOLING ACCOUNTING.  From and after the date hereof and 
until the Effective Time, neither Doubletree nor Promus, nor any of their 
respective Subsidiaries or other Affiliates shall knowingly take any action, 
or knowingly fail to take any action, that is reasonably likely to jeopardize 
the treatment of the Mergers as a pooling of interests for accounting 
purposes.

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<PAGE>

     Section 5.12  AFFILIATE AGREEMENTS.  Upon the execution of this 
Agreement, Doubletree and Promus will provide each other with a list of those 
persons who are, in Doubletree's or Promus's respective reasonable judgment, 
"affiliates" of Doubletree or Promus, respectively, within the meaning of 
Rule 145 (each such person who is an "affiliate" of Doubletree or Promus 
within the meaning of Rule 145 is referred to as an "Affiliate") promulgated 
under the Securities Act ("Rule 145").  Doubletree and Promus shall provide 
each other such information and documents as the other party shall reasonably 
request for purposes of reviewing such list and shall notify the other party 
in writing regarding any change in the identity of its Affiliates prior to 
the Closing Date.  Doubletree and Promus shall each use all reasonable 
efforts to deliver or cause to be delivered to each other by October 15, 1997 
(and in any case prior to the Effective Time) from each of its Affiliates, an 
executed Affiliate Agreement, in substantially the form of Exhibit F (with 
respect to affiliates of Doubletree) or Exhibit G (with respect to affiliates 
of Promus) attached hereto (each, an "Affiliate Agreement," and together, the 
"Affiliate Agreements").

     Section 5.13  NYSE LISTING.  Doubletree and Promus shall cause Parent to 
promptly prepare and submit to the NYSE a listing application covering the 
shares of Parent Common Stock to be issued in the Mergers and upon exercise 
of Doubletree Stock Options, the GEPT Warrant and Promus Stock Options, and 
shall use all reasonable efforts to cause such shares to be approved for 
listing on the NYSE, prior to the Effective Time, subject to official notice 
of issuance.

     Section 5.14  STOCK PLANS.

     (a)  At the Effective Time, each outstanding option to purchase shares 
of Doubletree Common Stock (an "Doubletree Stock Option") under the 
Doubletree Stock Plans and each outstanding option to purchase shares of 
Promus Common Stock (a "Promus Stock Option") under the Promus Stock Plans, 
in each case whether vested or unvested, shall be deemed to constitute an 
option to acquire, on the same terms and conditions as were applicable under 
such Doubletree Stock Option or Promus Stock Option, as the case may be, the 
same number of shares of Parent Common Stock as the holder of such Doubletree 
Stock Option or Promus Stock Option, as the case may be, would have been 
entitled to receive pursuant to the Doubletree Merger or the Promus Merger, 
respectively, had such holder exercised such option in full immediately prior 
to the Effective Time (rounded downward to the nearest whole number), at a 
price per share (rounded downward to the nearest whole cent) equal to (y) the 
aggregate exercise price for the shares of Doubletree Common Stock or Promus 
Common Stock, as the case may be, purchasable pursuant to such Doubletree 
Stock Option or such Promus Stock Option immediately prior to the Effective 
Time divided by (z) the number of full shares of Parent Common Stock deemed 
purchasable pursuant to such Doubletree Stock Option or Promus Stock Option, 
as the case may be, in accordance with the foregoing.

     (b)  As soon as practicable after the Effective Time, Parent shall 
deliver to the participants in the Doubletree Stock Plans and the Promus 
Stock Plans appropriate notice setting forth such participants' rights 
pursuant thereto and the grants pursuant to Doubletree Stock Plans or Promus 
Stock Plans, as the case may be, shall continue in effect on the same terms 
and 


                                      35
<PAGE>

conditions (subject to the adjustments required by this Section 5.14 after 
giving effect to the Mergers).

     (c)  Parent shall take all corporate action necessary to reserve for 
issuance a sufficient number of shares of Parent Common Stock for delivery 
under Doubletree Stock Plans and Promus Stock Plans assumed in accordance 
with this Section 5.14.  As soon as practicable after the Effective Time, 
Parent shall file a registration statement on Form S-8 (or any successor or 
other appropriate forms), or another appropriate form with respect to the 
shares of Parent Common Stock subject to such options and shall use its 
reasonable efforts to maintain the effectiveness of such registration 
statement or registration statements (and maintain the current status of the 
prospectus or prospectuses contained therein) for so long as such options 
remain outstanding.

     (d)  The Board of Directors of each of Doubletree and Promus shall, 
prior to or as of the Effective Time, take all necessary actions, pursuant to 
and in accordance with the terms of the Doubletree Stock Plans and the 
instruments evidencing the Doubletree Stock Options, or the Promus Stock 
Plans and the instruments evidencing the Promus Stock Options, as the case 
may be, to provide for the conversion of the Doubletree Stock Options and the 
Promus Stock Options into options to acquire Parent Common Stock in 
accordance with this Section 5.14 without obtaining consent of the holders of 
the Doubletree Stock Options or Promus Stock Options in connection with such 
conversion; provided, however, that Promus shall use all reasonable efforts 
to obtain from each holder of Promus Stock Options a waiver of any right of 
such holder to receive any cash payment which may become due with respect to 
any Promus Stock Options that are exercisable immediately prior to the 
Effective Time as a result of the consummation of the transactions 
contemplated hereby.

     (e)  The Board of Directors of each of Doubletree and Promus shall, 
prior to or as of the Effective Time, take appropriate action to approve the 
deemed cancellation of the Doubletree Stock Options or Promus Stock Options, 
as the case may be, for purposes of Section 16(b) of the Exchange Act.  The 
Board of Directors of Parent shall, prior to or as of the Effective Time, 
take appropriate action to approve the deemed grant of options to purchase 
Parent Common Stock under the Doubletree Stock Options and the Promus Stock 
Options (as converted pursuant to this Section 5.14) for purposes of Section 
16(b) of the Exchange Act.  

     Section 5.15  BROKERS OR FINDERS.  Each of Doubletree and Promus 
represents, as to itself, its Subsidiaries and its Affiliates, that no agent, 
broker, investment banker, financial advisor or other firm or person is or 
will be entitled to any broker's or finder's fee or any other commission or 
similar fee in connection with any of the transactions contemplated by this 
Agreement except Morgan Stanley & Co. Incorporated, whose fees and expenses 
will be paid by Doubletree in accordance with Doubletree's agreement with 
such firm (a copy of which has been delivered by Doubletree to Promus prior 
to the date of this Agreement), and BT Wolfensohn, whose fees and expenses 
will be paid by Promus in accordance with Promus's agreement with such firm 
(a copy of which has been delivered by Promus prior to the date of this 
Agreement).  Each of Promus and Doubletree agrees to indemnify and hold the 
other harmless from and against any and all claims, liabilities or 
obligations with respect to any such fees, commissions or 


                                      36
<PAGE>

expenses asserted by any person on the basis of any act or statement alleged 
to have been made by such party or any of its Affiliates.

     Section 5.16  INDEMNIFICATION.

     (a)  From and after the Effective Time, Parent agrees that it will, and 
will cause the Surviving Corporations to, indemnify and hold harmless each 
present and former director and officer of Doubletree and Promus (the 
"Indemnified Parties"), against any costs or expenses (including attorneys' 
fees), judgments, fines, losses, claims, damages, liabilities or amounts paid 
in settlement incurred in connection with any claim, action, suit, proceeding 
or investigation, whether civil, criminal, administrative or investigative, 
arising out of or pertaining to matters existing or occurring at or prior to 
the Effective Time, whether asserted or claimed prior to, at or after the 
Effective Time, to the fullest extent that Doubletree or Promus, as the case 
may be, would have been permitted under Delaware law and its certificate of 
incorporation or bylaws in effect on the date hereof to indemnify such 
Indemnified Party (and Parent and the Surviving Corporation shall also 
advance expenses as incurred to the fullest extent permitted under applicable 
law, provided the Indemnified Party to whom expenses are advanced provides an 
undertaking to repay such advances if it is ultimately determined that such 
Indemnified Party is not entitled to indemnification).

     (b)  For a period of six years after the Effective Time, Parent shall 
maintain or shall cause the Surviving Corporations to maintain (to the extent 
available in the market) in effect a directors' and officers' liability 
insurance policy covering those persons who are currently covered by 
Doubletree's or Promus's directors' and officers' liability insurance policy 
(copies of which have been heretofore delivered by Doubletree and Promus to 
each other) with coverage in amount and scope at least as favorable as 
Doubletree's or Promus's existing coverage; provided that in no event shall 
Parent or the Surviving Corporations be required to expend in the aggregate 
in excess of 200% of the annual premium currently paid by Doubletree and 
Promus for such coverage; and if such premium would at any time exceed 200% 
of the such amount, then the Parent or the Surviving Corporations shall 
maintain insurance policies which provide the maximum and best coverage 
available at an annual premium equal to 200% of  such amount.  

     (c)  The provisions of this Section 5.16 are intended to be an addition 
to the rights otherwise available to the current officers and directors of 
Doubletree and Promus by law, charter, statute, bylaw or agreement, and shall 
operate for the benefit of, and shall be enforceable by, each of the 
Indemnified Parties, their heirs and their representatives.

     Section 5.17  LETTER OF PROMUS'S ACCOUNTANTS.  Promus shall use all 
reasonable efforts to cause to be delivered to Doubletree and Promus a letter 
of Arthur Andersen LLP, Promus's independent auditors, dated a date within 
two business days before the date on which the Registration Statement shall 
become effective and addressed to Doubletree, in form reasonably satisfactory 
to Doubletree and customary in scope and substance for letters delivered by 
independent public accountants in connection with registration statements 
similar to the Registration Statement.


                                      37
<PAGE>

     Section 5.18  LETTER OF DOUBLETREE'S ACCOUNTANTS.  Doubletree shall use 
all reasonable efforts to cause to be delivered to Promus and Doubletree a 
letter of KPMG Peat Marwick LLP, Doubletree's independent auditors, dated a 
date within two business days before the date on which the Registration 
Statement shall become effective and addressed to Promus, in form reasonably 
satisfactory to Promus and customary in scope and substance for letters 
delivered by independent public accountants in connection with registration 
statements similar to the Registration Statement.

     Section 5.19  STOCK OPTION AGREEMENTS.  Promus and Doubletree each agree 
to fully perform their respective obligations under the Stock Option 
Agreements.

     Section 5.20  POST-MERGER CORPORATE GOVERNANCE; EMPLOYMENT ARRANGEMENTS.

     (a)  At the Effective Time, the total number of persons serving on the 
Board of Directors of Parent shall be fourteen (unless otherwise agreed in 
writing by Doubletree and Promus prior to the Effective Time), half of whom 
shall be Doubletree Directors and half of whom shall be Promus Directors (as 
such terms are defined below), all of which Doubletree Directors and Promus 
Directors shall be spread as evenly as possible among Parent's three classes 
of Directors.  The persons to serve initially on the Board of Directors of 
Parent at the Effective Time who are Doubletree Directors shall be selected 
solely by and at the absolute discretion of the Board of Directors of 
Doubletree prior to the Effective Time; and the persons to serve initially on 
the Board of Directors of Parent at the Effective Time who are Promus 
Directors shall be selected solely by and at the absolute discretion of the 
Board of Directors of Promus prior to the Effective Time.  In the event that, 
prior to the Effective Time, any person so selected to serve on the Board of 
Directors of Parent after the Effective Time is unable or unwilling to serve 
in such position, the Board of Directors which selected such person shall 
designate another of its members to serve in such person's stead in 
accordance with the provisions of the immediately preceding sentence.  From 
and after the Effective Time and until December 31, 2002, (a) the Board of 
Directors of Parent and each Committee of the Board of Directors of Parent as 
constituted following each election of Directors shall consist of an equal 
number of Doubletree Directors and Promus Directors, and (b) the size of the 
Board of Directors of Parent and each Committee of the Board of Directors of 
Parent shall not be increased unless such increase is approved by 75% of the 
members thereof.  It is the intention of the parties hereto that Mr. Dale 
Frey shall be designated as the initial Chairman of the Human Resources 
Committee of Parent immediately following the Effective Time.  If, at any 
time during the period referenced in the second preceding sentence, the 
number of Doubletree Directors and Promus Directors serving, or that would be 
serving following the next stockholders' meeting at which Directors are to be 
elected, as Directors of Parent or as members of any Committee of the Board 
of Directors of Parent, would not be equal, then, subject to the fiduciary 
duties of the Directors of Parent, the Board of Directors and the Nominating 
Committee thereof shall nominate for election at the next stockholders' 
meeting at which Directors are to be elected, such person or persons as may 
be requested by the remaining Doubletree Directors (if the number of 
Doubletree Directors is, or would otherwise become, less than the number of 
Promus Directors) or by the remaining Promus Directors (if the number of 
Promus Directors is, or would otherwise become, less than the number of 
Doubletree Directors) to ensure that there shall be an equal number of 
Doubletree Directors and Promus Directors.  The provisions of the preceding 
sentence shall not apply in 


                                      38
<PAGE>

respect of any stockholders' meeting which takes place after December 31, 
2002.  The term "Doubletree Director" means (i) any person serving as a 
Director of Doubletree or any of its Subsidiaries on the date hereof who 
becomes a Director of Parent at the Effective Time and (ii) any person who 
becomes a Director of Parent pursuant to the second preceding sentence and 
who is designated by the Doubletree Directors; and the term "Promus Director" 
means (i) any person serving as a Director of Promus or any of its 
Subsidiaries on the date hereof who becomes a Director of Parent at the 
Effective Time and (ii) any person who becomes a Director of Parent pursuant 
to the second preceding sentence and who is designated by the Promus 
Directors.

     (b)  At the Effective Time, pursuant to the terms of the employment 
contracts referred to in Section 5.20(c) hereof, (i) Raymond E. Schultz, the 
current Chief Executive Officer of Promus, shall hold the position of Chief 
Executive Officer and Chairman of the Board of Parent, (ii) Richard M. 
Kelleher, the current President and Chief Executive Officer of Doubletree, 
shall hold the position of President and Chief Operating Officer of Parent, 
(iii)  William L. Perocchi, the current Executive Vice President and Chief 
Financial Officer of Doubletree, shall hold the position of Executive Vice 
President and Chief Financial Officer of Parent and (iv)  Thomas L. Keltner, 
the current Executive Vice President, Development of Promus, shall hold the 
position of Executive Vice President, Development of Parent.  Mr. Schultz 
will continue as Chairman of the Board and Chief Executive Officer of Parent 
until his retirement no later than December 31, 1999, and, pursuant to the 
terms of the employment contracts referred to in Section 5.20(c) hereof and 
subject to the Bylaws of Parent, Mr. Kelleher will succeed Mr. Schultz as 
Chairman of the Board and Chief Executive Officer of Parent. If any of the 
persons identified above in this Section 5.20(b) is unable or unwilling to 
hold such offices as set forth above, his successor shall be selected by the 
Board of Directors of Parent in accordance with the Bylaws of Parent.  The 
authority, duties and responsibilities of the Chairman and Chief Executive 
Officer, the President and Chief Operating Officer, the Executive Vice 
President and Chief Financial Officer and the Executive Vice President, 
Development shall be set forth in the employment contracts entered into 
pursuant to Section 5.20(c) hereof, which employment contracts shall also set 
forth in their entirety the rights and remedies of Messrs. Schultz, Kelleher, 
Perocchi and Keltner with respect to employment by Parent , and none of them 
shall have any right, remedy or cause of action under this Section 5.20, nor 
shall they be third party beneficiaries of this Section 5.20. 

     (c)  Prior to the Closing, Parent shall offer to enter into employment 
agreements with Raymond E. Schultz, Richard M. Kelleher, William L. Perocchi 
and Thomas L. Keltner on substantially the terms previously agreed to by 
Doubletree and Promus.

     (d)  At the Effective Time, Parent shall have an Executive Committee 
which initially will be comprised of the following four members of the Board 
of Directors of Parent:  Richard J. Ferris, Michael D. Rose, Raymond E. 
Schultz and Peter V. Ueberroth.  In addition, Richard M. Kelleher shall be an 
ex-officio member of the Executive Committee with the right to attend but not 
vote at all meetings of the Executive Committee.  The Executive Committee 
shall have responsibility for developing Parent's long-term strategic plans, 
making significant capital allocation decisions and such other duties and 
responsibilities as specified by the Board of Directors of Parent at or after 
the Effective Time.  The Executive Committee also shall be required to 
oversee the implementation of Promus's existing 100% guest satisfaction 
guarantee 


                                      39
<PAGE>

program at all of Promus's and Doubletree's hotel properties following the 
Effective Time.  Each member of the Executive Committee that is not an 
employee of Parent will be entitled to receive $300,000 per year as 
compensation for serving on the Executive Committee.

     (e)  Each of Doubletree and Promus shall cause Parent to incorporate the 
provisions contained in this Section 5.20 into the Bylaws of Parent in effect 
at the Effective Time, which provisions shall thereafter be amended only with 
the approval of 75% of the members of the Board of Directors of Parent.

     Section 5.21  NAME OF PARENT.  At the Effective Time, Parent shall 
change its corporate name to Promus Hotel Corporation.

     Section 5.22  PARENT STOCKHOLDER RIGHTS PLAN.  Prior to the Effective 
Time, Doubletree and Promus shall cause Parent to adopt a Stockholder Rights 
Plan (the "Parent Rights Plan") that is substantially similar to the Promus 
Rights Plan, with such modifications as are acceptable to both Doubletree and 
Promus.

     Section 5.23  GEPT WARRANT; DOUBLETREE REGISTRATION RIGHTS AGREEMENT.

     (a)  At the Effective Time, Parent shall assume all obligations under 
the GEPT Warrant, and the holder of the GEPT Warrant thereafter shall have 
the right to acquire, on the same pricing and payment terms and conditions as 
are currently applicable under the GEPT Warrant, the same number of shares of 
Parent Common Stock as the holder of the GEPT Warrant would have been 
entitled to receive pursuant to the Doubletree Merger had such holder 
exercised the GEPT Warrant in full immediately prior to the Effective Time 
(rounded downward to the nearest whole number), at the price per share 
(rounded downward to the nearest whole cent) equal to (y) the aggregate 
exercise price for the shares of Doubletree Common Stock purchasable pursuant 
to the GEPT Warrant immediately prior to the Effective Time divided by (z) 
the number of full shares of Parent Common Stock deemed purchasable pursuant 
to the GEPT Warrant in accordance with the foregoing.

     (b)  At the Effective Time, Doubletree and Promus shall cause Parent to 
enter into a Registration Rights Agreement (the "Parent Registration Rights 
Agreement") substantially similar to the Incorporation and Registration 
Rights Agreement dated as of December 16, 1993, as amended on June 30, 1994, 
February 27, 1996 and November 8, 1996 by and among Doubletree and certain 
stockholders of Doubletree (the "Doubletree Registration Rights Agreement") 
pursuant to which Parent will provide registration rights to parties to the 
Doubletree Registration Rights Agreement (other than Doubletree) with respect 
to all shares of Parent Common Stock issued in the Doubletree Merger on 
account of the shares of Doubletree Common Stock covered by the Doubletree 
Registration Rights Agreement.

     Section 5.24  CONVEYANCE TAXES.  Doubletree and Promus shall cooperate 
in the preparation, execution and filing of all returns, questionnaires, 
applications or other documents regarding any real property transfer or 
gains, sales, use, transfer, value added, stock transfer and stamp taxes, any 
transfer, recording, registration and other fees or any similar taxes which 


                                      40
<PAGE>

become payable in connection with the transactions contemplated by this 
Agreement that are required or permitted to be filed on or before the 
Effective Time.

     Section 5.25  TRANSFER TAXES.  Doubletree shall pay, and Promus shall 
pay, on behalf of the stockholders of Doubletree and Promus, respectively, 
any New York State Real Estate Transfer Tax, New York City Real Property 
Transfer Tax, New York State Stock Transfer Tax and any similar taxes imposed 
on the stockholders of Doubletree and Promus, respectively, by any other 
State of the United States (and any interest with respect to such taxes) (the 
"Transfer Taxes"), which become payable in connection with the transactions 
contemplated by this Agreement.  Doubletree and Promus shall cooperate in the 
preparation, execution and filing of any required returns with respect to 
such Transfer Taxes (including returns on behalf of the stockholders of 
Doubletree and Promus) and in the determination of the portion of the 
consideration allocable to the real property of Doubletree and the Doubletree 
Subsidiaries and Promus and the Promus Subsidiaries in New York State and 
City (or in any other jurisdiction, if applicable).  The Joint Proxy 
Statement/Prospectus shall provide that the stockholders of Doubletree and 
Promus shall be deemed to have (i) authorized Doubletree and Promus, 
respectively, to prepare, execute and file any tax returns relating to 
Transfer Taxes and pay any Transfer Taxes arising in connection with the 
Mergers, in each case, on behalf of such holders and (ii) agreed to be bound 
by the values and allocations established by Doubletree and Promus in the 
preparation of any return with respect to the Transfer Taxes, if applicable.

     Section 5.26  STOCKHOLDER LITIGATION.  Each of Doubletree and Promus 
shall give the other the reasonable opportunity to participate in the defense 
of any stockholder litigation against Doubletree or Promus, as applicable, 
and its directors relating to the transactions contemplated hereby.

     Section 5.27  EMPLOYEE BENEFITS; SEVERANCE.

     (a)  Parent shall cause to continue to be maintained the Doubletree and 
Promus annual bonus plans for management employees for the 1997 fiscal year 
and shall calculate the amounts payable to participants thereunder on a basis 
consistent with the terms of each such plan and the past practice of 
Doubletree or Promus, as applicable.

     (b)  For purposes of determining eligibility to participate, vesting, 
entitlement to benefits and in all other respects where length of service is 
relevant (except for pension benefit accruals) under any employee benefit 
plan or arrangement covering employees of Doubletree and its Subsidiaries 
("Doubletree Employees") employees of Promus and its Subsidiaries ("Promus 
Employees") following the Effective Time, Parent shall cause such plans or 
arrangements to recognize service credit for service with Doubletree or 
Promus (as applicable) and any of their respective Subsidiaries to the same 
extent such service was recognized under the applicable employee benefit 
plans immediately prior to the Effective Time.

     (c)  At the Effective Time, Parent shall assume and honor in accordance 
with their terms the severance agreements and severance pay policies 
identified in Section 5.27 of the Doubletree Disclosure Schedule and Section 
5.27 of the Promus Disclosure Schedule. 


                                      41
<PAGE>


       (d) Promus and Doubletree agree that each may enter into retention and 
transition bonus arrangements with its employees prior to the Effective Time, 
with the terms and amounts of such payments to be determined jointly by the 
Chief Executive Officers of Promus and Doubletree; provided, however, that in 
no event shall the aggregate of all such payments exceed approximately $2.5 
million.

       (e) Promus agrees to use all reasonable efforts, including obtaining 
any necessary employee consents, to prevent the automatic funding of any 
escrow, trust or similar arrangement pursuant to any employment agreement, 
arrangement or benefit plan that arises in connection with the execution of 
this Agreement or the consummation of any of the transactions contemplated 
hereby.

                                ARTICLE VI.

                           CONDITIONS TO MERGER

    Section 6.1.  CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE 
MERGERS. The respective obligations of each party to this Agreement to effect 
the Mergers shall be subject to the satisfaction or waiver by each party 
prior to the Effective Time of the following conditions:

       (a) STOCKHOLDER APPROVAL.  This Agreement, the Doubletree Merger and 
the Promus Merger shall have been approved in the manner required under the 
DGCL by the respective holders of the issued and outstanding shares of 
capital stock of Doubletree and Promus.

       (b) HSR ACT.  The waiting period applicable to the consummation of the 
Mergers under the HSR Act shall have expired or been terminated.

       (c) APPROVALS.  Other than the filing provided for by Section 1.4, all 
authorizations, consents, orders or approvals of, or declarations or filings 
with, or expirations of waiting periods imposed by, any Governmental Entity 
the failure of which to file, obtain or occur is reasonably likely to have a 
Doubletree Material Adverse Effect or a Promus Material Adverse Effect shall 
have been filed, been obtained or occurred.

       (d) REGISTRATION STATEMENT.  The Registration Statement shall have 
become effective under the Securities Act and shall not be the subject of any 
stop order or proceedings seeking a stop order.

       (e) NO INJUNCTIONS.  No Governmental Entity shall have enacted, 
issued, promulgated, enforced or entered any order, executive order, stay, 
decree, judgment or injunction or statute, rule, regulation which is in 
effect and which has the effect of making the Mergers illegal or otherwise 
prohibiting consummation of the Mergers.

       (f) POOLING LETTERS.  Doubletree and Promus shall have received 
letters from KPMG Peat Marwick LLP and Arthur Andersen LLP, respectively, 
addressed to Doubletree and Promus, respectively, regarding their concurrence 
with the respective conclusions of 



                                      42
<PAGE>

management of Doubletree and Promus, as to the appropriateness of the pooling 
of interests accounting, under Accounting Principles Board Opinion No. 16 for 
the transactions contemplated hereby, it being agreed that Doubletree and 
Promus shall each provide reasonable cooperation to KPMG Peat Marwick LLP and 
Arthur Andersen LLP to enable them to issue such letters.

       (g) NYSE LISTING.  The shares of Parent Common Stock to be issued in 
the Merger and upon exercise of Doubletree Options, the GEPT Warrant and 
Promus Options shall have been approved for listing on the NYSE, subject to 
official notice of issuance.

       (h) CORPORATE GOVERNANCE.  Doubletree and Promus shall have taken all 
actions necessary so that (i) not later than the Effective Time, the 
Certificate of Incorporation and Bylaws of Parent shall have been amended to 
be substantially in the form of Exhibit D and Exhibit E hereto; (ii) at the 
Effective Time, the composition of the Board of Directors of Parent and of 
each Committee of the Board of Directors of Parent shall comply with Section 
5.20 hereof (assuming Doubletree has designated the Doubletree Directors and 
Promus has designated the Promus Directors, in each case as contemplated by 
Section 5.20(a) hereof); and (iii) not later than the Effective Time, Parent 
shall have adopted the Parent Rights Plan.

    Section 6.2.  ADDITIONAL CONDITIONS TO OBLIGATIONS OF DOUBLETREE.  
The obligation of Doubletree to effect the Doubletree Merger is subject to 
the satisfaction of each of the following conditions prior to the Effective 
Time, any of which may be waived in writing exclusively by Doubletree:

       (a) REPRESENTATIONS AND WARRANTIES.  The representations and 
warranties of Promus set forth in this Agreement shall be true and correct as 
of the date of this Agreement and (except to the extent such representations 
speak as of an earlier date) as of the Closing Date as though made on and as 
of the Closing Date, except for, (i) changes contemplated by this Agreement 
and (ii) inaccuracies which, individually or in the aggregate, have not had 
and are not reasonably likely to have a Promus Material Adverse Effect or a 
material adverse effect upon the consummation of the transactions 
contemplated hereby; and Doubletree shall have received a certificate signed 
on behalf of Promus by the chief executive officer and the chief financial 
officer of Promus to such effect.

       (b) PERFORMANCE OF OBLIGATIONS OF PROMUS.  Promus shall have performed 
in all material respects all obligations required to be performed by it under 
this Agreement at or prior to the Closing Date, and Doubletree shall have 
received a certificate signed on behalf of Promus by the chief executive 
officer and the chief financial officer of Promus to such effect.

       (c) TAX OPINION. Doubletree shall have received the opinion of Dewey 
Ballantine, counsel to Doubletree, based upon reasonably requested 
representation letters and dated the Closing Date, to the effect that the 
Doubletree Merger will be treated as a reorganization described in Section 
368(a) of the Code and/or, taken together with the Promus Merger, as a 
transfer of property to Parent by holders of Doubletree Common Stock 
described in Section 351 of the Code.

                                      43
<PAGE>

       (d) NO TRIGGER OF PROMUS RIGHTS PLAN.  No event shall have occurred 
that has or would result in the triggering of any right or entitlement of 
stockholders of Promus under the Promus Rights Plan, or will occur as a 
result of the consummation of the Mergers.

    Section 6.3. ADDITIONAL CONDITIONS TO OBLIGATIONS OF PROMUS.  The 
obligations of Promus to effect the Promus Merger are subject to the 
satisfaction of each of the following conditions prior to the Effective Time, 
any of which may be waived in writing exclusively by Promus:

       (a) REPRESENTATIONS AND WARRANTIES.  The representations and 
warranties of Doubletree set forth in this Agreement shall be true and 
correct as of the date of this Agreement and (except to the extent such 
representations and warranties speak as of an earlier date) as of the Closing 
Date as though made on and as of the Closing Date, except for, (i) changes 
contemplated by this Agreement and (ii) inaccuracies which, individually or 
in the aggregate, have not had and are not reasonably likely to have a 
Doubletree Material Adverse Effect, or a material adverse effect upon the 
consummation of the transactions contemplated hereby; and Promus shall have 
received a certificate signed on behalf of Doubletree by the chief executive 
officer and the chief financial officer of Doubletree to such effect.

       (b) PERFORMANCE OF OBLIGATIONS OF DOUBLETREE.  Doubletree shall have 
performed in all material respects all obligations required to be performed 
by it under this Agreement at or prior to the Closing Date; and Promus shall 
have received a certificate signed on behalf of Doubletree by the chief 
executive officer and the chief financial officer of Doubletree to such 
effect.  

       (c) TAX OPINION.  Promus shall have received the opinion of Latham & 
Watkins, counsel to Promus, based upon reasonably requested representation 
letters and dated the Closing Date, to the effect that the Promus Merger will 
be treated as a reorganization described in Section 368(a) of the Code 
and/or, taken together with the Doubletree Merger, as a transfer of property 
to Parent by holders of Promus Common Stock described in Section 351 of the 
Code.

       (d) NO TRIGGER OF DOUBLETREE RIGHTS PLAN.  No event shall have 
occurred that has or would result in the triggering of any right or 
entitlement of stockholders of Doubletree under the Doubletree Rights Plan, 
or will occur as a result of the consummation of the Mergers.


                                ARTICLE VII.


                          TERMINATION AND AMENDMENT

    Section 7.1. TERMINATION. This Agreement may be terminated at any time 
prior to the Effective Time (with respect to Sections 7.1(b) through 7.1(h), 
by written notice by the terminating party to the other party), whether 
before or after approval of the matters presented in connection with the 
Mergers by the stockholders of Doubletree or Promus:

       (a) by mutual written consent of Doubletree and Promus; or 




                                      44
<PAGE>

       (b) by either Doubletree or Promus if the Mergers shall not have been 
consummated by January 31, 1998 (provided that (i) either Doubletree or 
Promus may extend such date to March 31, 1998 by providing written notice 
thereof to the other party on or prior to January 31, 1998 (January 31, 1998, 
as it may be so extended, shall be referred to herein as the "Outside Date") 
and (ii) the right to terminate this Agreement under this Section 7.1(b) 
shall not be available to any party whose failure to fulfill any obligation 
under this Agreement has been the cause of or resulted in the failure of the 
Mergers to occur on or before such date); or

       (c) by either Doubletree or Promus if a court of competent 
jurisdiction or other Governmental Entity shall have issued a nonappealable 
final order, decree or ruling or taken any other nonappealable final action, 
in each case having the effect of permanently restraining, enjoining or 
otherwise prohibiting the Mergers; or

       (d) (i) by Doubletree or Promus, if, at the Promus Stockholders' 
Meeting (including any adjournment or postponement), the requisite vote of 
the stockholders of Promus in favor of the approval and adoption of this 
Agreement and the Promus Merger shall not have been obtained; or (ii) by 
Promus or Doubletree if, at the Doubletree Stockholders' Meeting (including 
any adjournment or postponement), the requisite vote of the stockholders of 
Doubletree in favor of the approval and adoption of this Agreement and the 
Doubletree Merger shall not have been obtained; or

       (e) by Doubletree, if (i) the Board of Directors of Promus shall have 
withdrawn or modified its recommendation of this Agreement or the Promus 
Merger (provided that Doubletree's right to terminate this Agreement under 
such clause (i) shall not be available if at such time Promus would be 
entitled to terminate this Agreement under Section 7.1(h) without giving 
effect to the cure period); (ii) after the receipt by Promus of an 
Acquisition Proposal, Doubletree requests in writing that the Board of 
Directors of Promus reconfirm its recommendation of this Agreement and the 
Promus Merger to the stockholders of Promus and the Board of Directors of 
Promus fails to do so within 10 business days after its receipt of 
Doubletree's request; (iii) the Board of Directors of Promus shall have 
recommended to the stockholders of Promus an Alternative Transaction (as 
defined in Section 7.3(e)); (iv) a tender offer or exchange offer for 20% or 
more of the outstanding shares of Promus Common Stock is commenced (other 
than by Doubletree or an Affiliate of Doubletree) and the Board of Directors 
of Promus recommends that the stockholders of Promus tender their shares in 
such tender or exchange offer; or (v) for any reason Promus fails to call and 
hold the Promus Stockholders' Meeting by the Outside Date (provided that 
Doubletree's right to terminate this Agreement under such clause (v) shall 
not be available if at such time Promus would be entitled to terminate this 
Agreement under Section 7.1(h) without giving effect to the cure period); or

       (f) by Promus, if (i) the Board of Directors of Doubletree shall have 
withdrawn or modified its recommendation of this Agreement or the Doubletree 
Merger (provided that Promus's right to terminate this Agreement under such 
clause (i) shall not be available if at such time Doubletree would be 
entitled to terminate this Agreement under Section 7.1(h) without giving 
effect to the cure period); (ii) after the receipt by Doubletree of an 
Acquisition Proposal, Promus requests in writing that the Board of Directors 
of Doubletree reconfirm its recommendation of this Agreement and the 
Doubletree Merger to the stockholders of Promus 



                                      45

<PAGE>

and the Board of Directors of Doubletree fails to do so within 10 business 
days after its receipt of Promus's request; (iii) the Board of Directors of 
Doubletree shall have recommended to the stockholders of Doubletree an 
Alternative Transaction (as defined in Section 7.3(e)); (iv) a tender offer 
or exchange offer for 20% or more of the outstanding shares of Doubletree 
Common Stock is commenced (other than by Promus or an Affiliate of Promus) 
and the Board of Directors of Doubletree recommends that the stockholders of 
Doubletree tender their shares in such tender or exchange offer; or (v) for 
any reason Doubletree fails to call and hold the Doubletree Stockholders' 
Meeting by the Outside Date (provided that Promus's right to terminate this 
Agreement under such clause (v) shall not be available if at such time 
Doubletree would be entitled to terminate this Agreement under Section 7.1(h) 
without giving effect to the cure period); or

       (g) by Doubletree or Promus, prior to the approval of this Agreement 
by the stockholders of such party, if, as a result of a Superior Proposal 
received by such party from a Third Party, the Board of Directors of such 
party determines in good faith after consultation with outside legal counsel 
that accepting such Superior Proposal is required for such Board of Directors 
to comply with its fiduciary duties to stockholders under applicable law; 
provided, however, that no termination shall be effective pursuant to this 
Section 7.1(g) under circumstances in which a termination fee is payable by 
the terminating party pursuant to Section 7.3(b)(iii) or (c)(iii), unless 
concurrently with such termination, such termination fee is paid in full by 
the terminating party in accordance with Section 7.3(b)(iii) or (c)(iii), as 
applicable; or

       (h) by Doubletree or Promus, if (A) there has been a breach of any 
representation, warranty, covenant or agreement on the part of the other 
party set forth in this Agreement, which breach (i) will cause the conditions 
set forth in Section 6.2(a) or (b) (in the case of termination by Doubletree) 
or 6.3(a) or (b) (in the case of termination by Promus) not to be satisfied, 
and (ii) shall not have been cured within 20 business days following receipt 
by the breaching party of written notice of such breach from the other party; 
or (B) any event shall have occurred which makes it impossible for the 
conditions set forth in Article VI hereof (other than Section 6.1(a), 6.1(e), 
6.2(d) and 6.3(d)) to be satisfied, provided that any termination pursuant to 
this clause (B) shall not be effective until 20 business days after notice 
thereof is delivered by the party seeking to terminate to the other party, 
and shall be automatically rescinded if (1) such condition is solely for the 
benefit of the party receiving such notice and (2) such party, prior to such 
20th business day, irrevocably waives satisfaction of such condition based on 
such event.

    Section 7.2.  EFFECT OF TERMINATION.  In the event of termination of this 
Agreement as provided in Section 7.1, this Agreement shall immediately become 
void and there shall be no liability or obligation on the part of Doubletree, 
Promus, Parent or their respective officers, directors, stockholders or 
Affiliates, except as set forth in Sections 5.15 and 7.3 and except that such 
termination shall not limit liability for a willful breach of this Agreement; 
provided that, the provisions of Sections 5.15 and 7.3 of this Agreement, the 
Stock Option Agreements and the Confidentiality Agreements shall remain in 
full force and effect and survive any termination of this Agreement.



                                     46

<PAGE>

    Section 7.3   FEES AND EXPENSES.

      (a)   Except as set forth in this Section 7.3, all fees and expenses
incurred in connection with this Agreement and the transactions contemplated
hereby shall be paid by the party incurring such expenses, whether or not the
Mergers are consummated.

      (b)   Doubletree shall pay Promus a termination fee of $45 million upon 
the earliest to occur of the following events:

                  (i)   the termination of this Agreement by either Promus or
Doubletree pursuant to Section 7.1(d)(ii), if a proposal for an Alternative
Transaction (as defined below) involving Doubletree shall have been publicly
announced prior to the Doubletree Stockholders' Meeting and either a definitive
agreement for an Alternative Transaction is entered into, or an Alternative
Transaction is consummated, within eighteen months of such termination;

                 (ii)   the termination of this Agreement by Promus pursuant to
Section 7.1(f); or 

                 (iii)  the termination of this Agreement by Doubletree
pursuant to Section 7.1(g).

         Doubletree's payment of a termination fee pursuant to this subsection
shall be the sole and exclusive remedy of Promus against Doubletree and any of
its Subsidiaries and their respective directors, officers, employees, agents,
advisors or other representatives with respect to the occurrences giving rise to
such payment; provided that this limitation shall not apply in the event of a
willful breach of this Agreement by Doubletree.  Notwithstanding the foregoing,
if and to the extent that Promus has purchased shares of Doubletree Common Stock
pursuant to the Promus Stock Option Agreement prior to the payment of the $45
million fee provided for herein (the "Fee Payment Date"), the amount payable to
Promus under this Section 7.3(b), together with (i)(x) the net cash amount
received by Promus prior to the Fee Payment Date pursuant to Doubletree's
repurchase of Shares (as defined in the Promus Stock Option Agreement) pursuant
to Section 7 of the Promus Stock Option Agreement, less (y) Promus's purchase
price for such Shares, and (ii)(x) the amounts received by Promus prior to the
Fee Payment Date pursuant to the sale of Shares (or any other securities into
which such Shares are converted or exchanged), less (y) Promus's purchase price
for such Shares, shall not exceed $65 million.

      (c)   Promus shall pay Doubletree a termination fee of $45 million upon 
the earliest to occur of the following events:

                 (i)   the termination of this Agreement by either Doubletree
or Promus pursuant to Section 7.1(d)(i), if a proposal for an Alternative
Transaction (as defined below) involving Promus shall have been publicly
announced prior to the Promus Stockholders' Meeting and either an Alternative
Transaction is entered into, or an Alternative Transaction is consummated,
within eighteen months of such termination;

                 (ii)  the termination of this Agreement by Doubletree
pursuant  to Section 7.1(e); or 


                               47
<PAGE>



                 (iii) the termination of this Agreement by Promus pursuant to
Section 7.1 (g).

         Promus's payment of a termination fee pursuant to this subsection
shall be the sole and exclusive remedy of Doubletree against Promus and any of
its Subsidiaries and their respective directors, officers, employees, agents,
advisors or other representatives with respect to the occurrences giving rise to
such payment; provided that this limitation shall not apply in the event of a
willful breach of this Agreement by Promus.  Notwithstanding the foregoing, if
and to the extent that Doubletree has purchased shares of Promus Common Stock
pursuant to the Doubletree Stock Option Agreement prior to the Fee Payment Date,
the amount payable to Doubletree under this Section 7.3(c), together with (i)(x)
the net cash amount received by Doubletree prior to the Fee Payment Date
pursuant to Promus's repurchase of Shares (as defined in the Doubletree Stock
Option Agreement) pursuant to Section 7 of the Doubletree Stock Option
Agreement, less (y) Doubletree's purchase price for such Shares, and (ii)(x) the
amounts received by Doubletree prior to the Fee Payment Date pursuant to the
sale of Shares (or any other securities into which such Shares are converted or
exchanged), less (y) Doubletree's purchase price for such Shares, shall not
exceed $65 million.

      (d)   The fees payable pursuant to Section 7.3(b) or 7.3(c) shall be paid
concurrently with the first to occur of the events described in Section
7.3(b)(i), (ii) or (iii) or 7.3(c)(i), (ii) or (iii), respectively.

      (e)   As used in this Agreement, "Alternative Transaction" means either
(i) a transaction pursuant to which any Third Party acquires more than 20% of
the outstanding shares of Doubletree Common Stock or Promus Common Stock, as the
case may be, pursuant to a tender offer or exchange offer or otherwise, (ii) a
merger or other business combination involving Doubletree or Promus pursuant to
which any Third Party (or the stockholders of a Third Party) acquires more than
20% of the outstanding shares of Doubletree Common Stock or Promus Common Stock,
as the case may be, or the entity surviving such merger or business combination,
(iii) any other transaction pursuant to which any Third Party acquires control
of assets (including for this purpose the outstanding equity securities of
Subsidiaries of Doubletree or Promus, and the entity surviving any merger or
business combination including any of them) of Doubletree or Promus having a
fair market value (as determined by the Board of Directors of Doubletree or
Promus, as the case may be, in good faith) equal to more than 20% of the fair
market value of all the assets of Doubletree or Promus, as the case may be, and
their respective Subsidiaries, taken as a whole, immediately prior to such
transaction, or (iv) any public announcement of a proposal, plan or intention to
do any of the foregoing or any agreement to engage in any of the foregoing.  

    Section 7.4  AMENDMENT.  This Agreement may be amended by the parties 
hereto, by action taken or authorized by their respective Boards of 
Directors, at any time before or after approval of the matters presented in 
connection with the Mergers by the stockholders of Doubletree or Promus, but, 
after any such approval, no amendment shall be made which by law requires 
further approval by such stockholders without such further approval.  This 
Agreement may not be amended except by an instrument in writing signed on 
behalf of each of the parties hereto; provided, however, that this Agreement 
may be amended in writing without obtaining the


                                   48

<PAGE>


signatures of Doubletree, Promus or Parent solely for the purpose of adding 
Doubletree Sub and Merger Sub as parties to this Agreement.

    Section 7.5  EXTENSION; WAIVER.  At any time prior to the Effective Time,
the parties hereto, by action taken or authorized by their respective Boards of
Directors, may, to the extent legally allowed, (i) extend the time for the
performance of any of the obligations or other acts of the other parties hereto,
(ii) waive any inaccuracies in the representations and warranties contained
herein or in any document delivered pursuant hereto and (iii) waive compliance
with any of the agreements or conditions contained here.  Any agreement on the
part of a party hereto to any such extension or waiver shall be valid only if
set forth in a written instrument signed on behalf of such party.  

                                  ARTICLE VIII.

                                 MISCELLANEOUS

    Section 8.1  NONSURVIVAL OF REPRESENTATIONS, WARRANTIES AND AGREEMENTS.
None of the representations, warranties and agreements in this Agreement or in
any instrument delivered pursuant to this Agreement shall survive the Effective
Time, except for the agreements contained in Sections 1.6, 2.1, 2.2, 2.4, 5.16,
5.19, 5.20 and 5.27 and Article VIII, and the agreements of the Affiliates
delivered pursuant to Section 5.12.  The Confidentiality Agreements shall
survive the execution and delivery of this Agreement.

    Section 8.2  NOTICES. All notices and other communications hereunder shall
be in writing and shall be deemed given if delivered personally, telecopied
(which is confirmed) or mailed by registered or certified mail (return receipt
requested) to the parties at the following addresses (or at such other address
for a party as shall be specified by like notice):  

         (a)  if to Doubletree, to

                   Doubletree Corporation
                   410 North 44th Street, Suite 700
                   Phoenix, AZ  85008
                   Attn:  Richard M. Kelleher
                   Telecopy:  (602) 220-6753

                   with a copy to

                   Dewey Ballantine
                   1301 Avenue of the Americas
                   New York, NY 10019-6092
                   Attn:  William J. Phillips, Esq.
                   Telecopy:  (212) 295-6333


                                49
<PAGE>


         (b)  if to Promus, to

                   Promus Hotel Corporation
                   755 Crossover Lane
                   Memphis, TN 38117
                   Attn:  Raymond E. Schultz
                   Telecopy:  (901) 374-5636

                   with a copy to:

                   Latham & Watkins
                   633 West Fifth Street, Suite 4000
                   Los Angeles, CA 90071-2007
                   Attn:  John M. Newell, Esq.
                   Telecopy:  (213) 891-8763

    Section 8.3  INTERPRETATION. When a reference is made in this Agreement to
Sections, such reference shall be to a Section of this Agreement unless
otherwise indicated.  The table of contents and headings contained in this
Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement.  Whenever the words "include,"
"includes" or "including" are used in this Agreement they shall be deemed to be
followed by the words "without limitation." The phrase "made available" in this
Agreement shall mean that the information referred to has been made available if
requested by the party to whom such information is to be made available.  The
phrases "the date of this Agreement", "the date hereof," and terms of similar
import, unless the context otherwise requires, shall be deemed to refer to
September 1, 1997.

    Section 8.4  COUNTERPARTS. This Agreement may be executed in two or more
counterparts, all of which shall be considered one and the same agreement and
shall become effective when two or more counterparts have been signed by each of
the parties and delivered to the other parties, it being understood that all
parties need not sign the same counterpart.

    Section 8.5  ENTIRE AGREEMENT; NO THIRD PARTY BENEFICIARIES. This
Agreement and all documents and instruments referred to herein (a) constitute
the entire agreement and supersedes all prior agreements and understandings,
both written and oral, among the parties with respect to the subject matter
hereof, and (b) except as provided in Section 5.16 are not intended to confer
upon any person other than the parties hereto any rights or remedies hereunder;
provided that the Confidentiality Agreements shall remain in full force and
effect until the Effective Time.  Each party hereto agrees that, except for the
representations and warranties contained in this Agreement, neither Doubletree
nor Promus makes any other representations or warranties, and each hereby
disclaims any other representations and warranties made by itself or any of its
officers, directors, employees, agents, financial and legal advisors or other
representatives, with respect to the execution and delivery of this Agreement or
the transactions contemplated hereby, notwithstanding the delivery or disclosure
to the other or the other's representatives of any documentation or other
information with respect to any one or more of the foregoing.


                                       50
<PAGE>


    Section 8.6  GOVERNING LAW. This Agreement shall be governed and construed
in accordance with the laws of the State of Delaware without regard to any
applicable conflicts of law.

    Section 8.7  ASSIGNMENT. Neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties
hereto (whether by operation of law or otherwise) without the prior written
consent of the other parties.  Subject to the preceding sentence, this Agreement
will be binding upon, inure to the benefit of and be enforceable by the parties
and their respective successors and assigns.



                                       51
<PAGE>

           Signature Page for Agreement and Plan of Merger


         IN WITNESS WHEREOF, Doubletree, Promus and Parent have caused this
Agreement to be signed by their respective duly authorized officers as of the
date first written above.

                                     DOUBLETREE CORPORATION
                                       
                                       
                                          /s/ Richard M. Kelleher
                                     -----------------------------------
                                     By:  Richard M. Kelleher
                                     Its:  President and Chief Executive
                                           officer


                                     PROMUS HOTEL CORPORATION
                                       
                                       
                                          /s/ Raymond E. Schultz   
                                     -----------------------------------
                                     By:  Raymond E. Schultz
                                     Its: President and Chief Executive Officer


                                     PARENT HOLDING CORP.
                                       
                                       
                                          /s/ Raymond E. Schultz   
                                     -----------------------------------
                                     By:  Raymond E. Schultz
                                     Its: Chief Executive Officer and 
                                          Chairman of the Board

                                       


                                   S-1


<PAGE>


                      STOCK OPTION AGREEMENT (DOUBLETREE)

         STOCK OPTION AGREEMENT, dated as of September 1, 1997 (the 
"Agreement"), between DOUBLETREE CORPORATION., a Delaware corporation (the 
"Grantee"), and PROMUS HOTEL CORPORATION, a Delaware corporation (the 
"Grantor").

         WHEREAS, the Grantee, Parent Holding Corp., a Delaware corporation 
("Parent"), and the Grantor are entering into an Agreement and Plan of 
Merger, dated as of the date hereof (the "Merger Agreement"), which provides, 
among other things, for the merger (the "Doubletree Merger") of a subsidiary 
of Parent with and into the Grantee and the merger (the "Promus Merger") of 
another subsidiary of Parent with and into the Grantor, such that the Grantee 
and the Grantor will become wholly-owned subsidiaries of Parent and the 
stockholders of the Grantee and the Grantor will become stockholders of 
Parent (the Doubletree Merger and the Promus Merger collectively, the 
"Mergers");

         WHEREAS, pursuant to a Stock Option Agreement dated as of the date 
hereof between the Grantee and the Grantor, the Grantee has granted the 
Grantor an option to acquire shares of common stock of the Grantee on terms 
that are substantially similar to the terms of this Agreement (the "Promus 
Option");

         WHEREAS, as a condition and inducement to their willingness to enter 
into the Merger Agreement and the Promus Option, the Grantee and Parent have 
requested that the Grantor grant to the Grantee an option to purchase 
9,929,485 shares of Common Stock, par value $0.10 per share, of the Grantor 
(the "Common Stock"), upon the terms and subject to the conditions hereof; and

         WHEREAS, in order to induce the Grantee to enter into the Merger 
Agreement and grant the Promus Option, the Grantor is willing to grant the 
Grantee the requested option.

         NOW, THEREFORE, in consideration of the premises and the mutual 
covenants and agreements set forth herein, the parties hereto agree as 
follows: 

         1.  THE OPTION; EXERCISE; ADJUSTMENTS; PAYMENT OF SPREAD.

             (a)  Contemporaneously herewith the Grantee, Parent and the 
Grantor are entering into the Merger Agreement.  Subject to the other terms 
and conditions set forth herein, the Grantor hereby grants to the Grantee an 
irrevocable option (the "Option") to purchase up to 9,929,485 (as adjusted as 
provided herein) shares of Common Stock (together with the associated 
purchase rights issued with respect thereto pursuant to the Rights Agreement 
dated as of June 30, 1995 between the Grantor and Continental Stock Transfer & 
Trust Company (the "Grantor Rights Plan")) (the "Shares") at a per share 
cash purchase price equal to the lower of (i) $38.8125 per Share or (ii) the 
average closing sales price of the Common Stock on the New York Stock 
Exchange Composite Tape (the "NYSE Composite Tape") for the five consecutive 
trading days beginning on and including the day that the Mergers are publicly 
announced (as adjusted as provided herein) (such lower price being the 
"Purchase Price").  The Option may be exercised by the Grantee, in whole or 
in part, at any time, or from time to time, following the occurrence of 


<PAGE>

one of the events set forth in Section 2(c) hereof and prior to the 
termination of the Option in accordance with the terms of this Agreement.

             (b)  In the event the Grantee wishes to exercise the Option, the 
Grantee shall send a written notice to the Grantor (the "Stock Exercise 
Notice") specifying a date (subject to the HSR Act (as defined below)) not 
later than 10 business days and not earlier than the next business day 
following the date such notice is given for the closing of such purchase.  In 
the event of any change in the number of issued and outstanding shares of 
Common Stock by reason of any stock dividend, stock split, split-up, 
reclassification, recapitalization, merger or other change in the corporate 
or capital structure of the Grantor (including the occurrence of a 
Distribution Date under the Grantor Rights Plan), the number of Shares 
subject to this Option and the purchase price per Share shall be 
appropriately adjusted to restore the Grantee to its rights hereunder, 
including its right to purchase Shares representing 19.9% of the capital 
stock of the Grantor entitled to vote generally for the election of the 
directors of the Grantor which is issued and outstanding immediately prior to 
the exercise of the Option at an aggregate purchase price equal to the 
Purchase Price multiplied by 9,929,485.  In the event that any additional 
shares of Common Stock are issued after the date of this Agreement (other 
than pursuant to an event described in the preceding sentence), the number of 
Shares subject to this Option shall be increased by 19.9% of the number of 
the additional shares of Common Stock so issued (and such additional Shares 
shall have a purchase price per share equal to the Purchase Price).

             (c)  If at any time the Option is then exercisable pursuant to 
the terms of Section 1(a) hereof, the Grantee may elect, in lieu of 
exercising the Option to purchase Shares provided in Section 1(a) hereof, to 
send a written notice to the Grantor (the "Cash Exercise Notice") specifying 
a date not later than 20 business days and not earlier than 10 business days 
following the date such notice is given on which date the Grantor shall pay 
to the Grantee an amount in cash equal to the Spread (as hereinafter defined) 
multiplied by all or such portion of the Shares subject to the Option as 
Grantee shall specify.  As used herein "Spread" shall mean the excess, if 
any, over the Purchase Price of the higher of (x) if applicable, the highest 
price per share of Common Stock (including any brokerage commissions, 
transfer taxes and soliciting dealers' fees) paid by any person in an 
Alternative Transaction (as defined in clause (i), (ii) or (iii) of 
Section 7.3(e) of the Merger Agreement) (the "Alternative Purchase Price") or 
(y) the closing sales price of the shares of Common Stock on the NYSE 
Composite Tape on the last trading day immediately prior to the date of the 
Cash Exercise Notice (the "Closing Price").  If the Alternative Purchase 
Price includes any property other than cash, the Alternative Purchase Price 
shall be the sum of (i) the fixed cash amount, if any, included in the 
Alternative Purchase Price plus (ii) the fair market value of such other 
property.  If such other property consists of securities with an existing 
public trading market, the average of the closing sales prices (or the 
average of the closing bid and asked prices if closing sales prices are 
unavailable) for such securities in their principal public trading market on 
the five trading days ending five days prior to the date of the Cash Exercise 
Notice shall be deemed to equal the fair market value of such property.  If 
such other property consists of something other than cash or securities with 
an existing public trading market and, as of the payment date for the Spread, 
agreement on the value of such other property has not been reached, the 
Alternative Purchase Price shall be deemed to equal the Closing Price.  Upon 
exercise of the Grantee's right to receive cash pursuant to this 


                                       2

<PAGE>

Section 1(c) and the payment of such cash to the Grantee, the obligations of 
the Grantor to deliver Shares pursuant to Section 3 shall be terminated with 
respect to such number of Shares for which the Grantee shall have elected to 
be paid the Spread.

         2.  CONDITIONS TO DELIVERY OF SHARES.  The Grantor's obligation to 
deliver Shares upon exercise of the Option is subject only to the conditions 
that:

             (a)  No preliminary or permanent injunction or other order 
issued by any federal or state court of competent jurisdiction in the United 
States prohibiting the delivery of the Shares shall be in effect; and

             (b)  Any applicable waiting periods under the Hart-Scott-Rodino 
Antitrust Improvements Act of 1976 (the "HSR Act") shall have expired or been 
terminated and all other consents, approvals, orders, notifications or 
authorizations, the failure of which to obtain or make would have the effect 
of making the issuance of the Shares illegal (collectively, the "Regulatory 
Approvals") shall have been obtained or made; and

             (c)  (i) a proposal for an Alternative Transaction (as defined 
in the Merger Agreement) involving the Grantor shall have been publicly 
announced prior to the time the Merger Agreement is terminated pursuant to 
the terms thereof (the "Merger Termination Date") and one or more of the 
following events shall have occurred on or after the time of the making of 
such proposal: (A) the requisite vote of the stockholders of the Grantor in 
favor of adoption and approval of the Merger Agreement shall not have been 
obtained at the Promus Stockholders' Meeting (as defined in the Merger 
Agreement) or any adjournment or postponement thereof; (B) the Board of 
Directors of the Grantor shall have withdrawn or modified its recommendation 
of the Merger Agreement or the Promus Merger or failed to confirm its 
recommendation of the Merger Agreement or the Promus Merger to the 
stockholders of the Grantor within ten business days after a written request 
by the Grantee to do so; (C) the Board of Directors of the Grantor shall have 
recommended to the stockholders of the Grantor an Alternative Transaction (as 
defined in the Merger Agreement); (D) a tender offer or exchange offer for 
20% or more of the outstanding shares of Grantor Common Stock shall have been 
commenced (other than by the Grantee or an affiliate of the Grantee) and the 
Board of Directors of the Grantor shall have recommended that the 
stockholders of the Grantor tender their shares in such tender or exchange 
offer; or (E) for any reason Grantor shall have failed to call and hold the 
Promus Stockholders' Meeting (as defined in the Merger Agreement) by the 
Outside Date (as defined in the Merger Agreement; provided, however, that the 
Option may not be exercised if the Grantee is in material breach of any of 
its material representations, warranties, covenants or agreements contained 
in this Agreement or in the Merger Agreement; or (ii) the Merger Agreement 
shall have been terminated by the Grantor pursuant to Section 7.1(g) of the 
Merger Agreement.

         3.  THE CLOSING.

             (a)  Any closing hereunder shall take place on the date 
specified by the Grantee in its Stock Exercise Notice or Cash Exercise 
Notice, as the case may be, at 8:00 A.M., local time, at the offices of 
Latham & Watkins, 633 West Fifth Street, Suite 4000, Los Angeles, 


                                       3

<PAGE>

CA 90071, or, if the conditions set forth in Section 2(a) or 2(b) have not 
then been satisfied, on the second business day following the satisfaction of 
such conditions, or at such other time and place as the parties hereto may 
agree (the "Closing Date").  On the Closing Date, (i) in the event of a 
closing pursuant to Section 1(b) hereof, the Grantor will deliver to the 
Grantee a certificate or certificates, duly endorsed (or accompanied by duly 
executed stock powers), representing the Shares in the denominations 
designated by the Grantee in its Stock Exercise Notice and the Grantee will 
purchase such Shares from the Grantor at the price per Share equal to the 
Purchase Price or (ii) in the event of a closing pursuant to Section 1(c) 
hereof, the Grantor will deliver to the Grantee cash in an amount determined 
pursuant to Section 1(c) hereof.  Any payment made by the Grantee to the 
Grantor, or by the Grantor to the Grantee, pursuant to this Agreement shall 
be made by certified or official bank check or by wire transfer of federal 
funds to a bank designated by the party receiving such funds.

             (b)  The certificates representing the Shares may bear an 
appropriate legend relating to the fact that such Shares have not been 
registered under the Securities Act of 1933, as amended (the "Securities 
Act").

         4.  REPRESENTATIONS AND WARRANTIES OF THE GRANTOR.  The Grantor 
represents and warrants to the Grantee that (a) the Grantor is a corporation 
duly organized, validly existing and in good standing under the laws of the 
State of Delaware and has the requisite corporate power and authority to 
enter into and perform this Agreement; (b) the execution and delivery of this 
Agreement by the Grantor and the consummation by it of the transactions 
contemplated hereby have been duly authorized by the Board of Directors of 
the Grantor and this Agreement has been duly executed and delivered by a duly 
authorized officer of the Grantor and constitutes a valid and binding 
obligation of the Grantor, enforceable in accordance with its terms, subject 
to bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium 
and similar laws of general applicability relating to or affecting creditors' 
rights and to general equity principles; (c) the Grantor has taken all 
necessary corporate action to authorize and reserve the Shares issuable upon 
exercise of the Option and the Shares, when issued and delivered by the 
Grantor upon exercise of the Option, will be duly authorized, validly issued, 
fully paid and non-assessable and free of preemptive rights; (d) except as 
otherwise required by the HSR Act and other than any filings required under 
the blue sky laws of any states or by the New York Stock Exchange, Inc. (the 
"NYSE"), the execution and delivery of this Agreement by the Grantor and the 
issuance of Shares upon exercise of the Option do not require the consent, 
waiver, approval or authorization of or any filing with any person or public 
authority and will not violate, result in a breach of or the acceleration of 
any obligation under, or constitute a default under, any provision of any 
charter or by-law, indenture, mortgage, lien, lease, agreement, contract, 
instrument, order, law, rule, regulation, judgment, ordinance, or decree, or 
restriction by which the Grantor or any of its subsidiaries or any of their 
respective properties or assets is bound; (e) no "fair price", "moratorium", 
"control share acquisition" or other form of antitakeover statute or 
regulation (including, without limitation, the restrictions on "business 
combinations" set forth in Section 203 of the Delaware General Corporation 
Law) is or shall be applicable to the acquisition of Shares pursuant to this 
Agreement (and the Board of Directors of Grantor has taken all action to 
approve the acquisition of the Shares to the extent necessary to avoid such 
application) and (f) the Grantor has taken all corporate action necessary so 
that the grant and any 


                                       4

<PAGE>

subsequent exercise of the Option by the Grantee will not result in the 
separation or exercisability of rights under the Grantor Rights Plan.

         5.  REPRESENTATIONS AND WARRANTIES OF THE GRANTEE.  The Grantee 
represents and warrants to the Grantor that (a) the execution and delivery of 
this Agreement by the Grantee and the consummation by it of the transactions 
contemplated hereby have been duly authorized by all necessary corporate 
action on the part of the Grantee and this Agreement has been duly executed 
and delivered by a duly authorized officer of the Grantee and will constitute 
a valid and binding obligation of Grantee; and (b) the Grantee is acquiring 
the Option after the Grantee has been afforded the opportunity to obtain, and 
has obtained, sufficient information regarding the Grantor to make an 
informed investment decision with respect to the Grantee's purchase of the 
Shares issuable upon the exercise thereof, and, if and when the Grantee 
exercises the Option, it will be acquiring the Shares issuable upon the 
exercise thereof for its own account and not with a view to distribution or 
resale in any manner which would be in violation of the Securities Act.

         6.  LISTING OF SHARES; HSR ACT FILINGS; REGULATORY APPROVALS.  
Subject to applicable law and the rules and regulations of the NYSE, the 
Grantor will promptly file an application to list the Shares on the NYSE and 
will use its best efforts to obtain approval of such listing and to file all 
necessary filings by the Grantor under the HSR Act; provided, however, that 
if the Grantor is unable to effect such listing on the NYSE by the Closing 
Date, the Grantor will nevertheless be obligated to deliver the Shares upon 
the Closing Date.  Each of the parties hereto will use its best efforts to 
obtain consents of all third parties and all Regulatory Approvals, if any, 
necessary to the consummation of the transactions contemplated.

         7.  REPURCHASE OF SHARES; SALE OF SHARES.  If a Change in Control 
Event has not occurred prior to the first anniversary date of the Merger 
Termination Date, then beginning on such anniversary date, the Grantor shall 
have the right to purchase (the "Repurchase Right") all, but not less than 
all, of the Shares then beneficially owned by the Grantee or any of its 
affiliates at a price per share equal to the greater of (i) the Purchase 
Price, or (ii) the average of the closing sales prices for shares of Common 
Stock on the twenty trading days ending five days prior to the date the 
Grantor gives written notice of its intention to exercise the Repurchase 
Right.  If the Grantor does not exercise the Repurchase Right within thirty 
days following the first anniversary of the Merger Termination Date, the 
Repurchase Right terminates.  In the event the Grantor wishes to exercise the 
Repurchase Right, the Grantor shall send a written notice to the Grantee 
specifying a date (not later than 10 business days and not earlier than the 
next business day following the date such notice is given) for the closing of 
such purchase.  For purposes of the Agreement, a "Change in Control Event" 
shall be deemed to have occurred if (i) any person or group has a acquired 
beneficial ownership of more than fifty percent (excluding the Shares) of the 
outstanding shares of Common Stock or (ii) the Grantor shall have entered 
into an agreement, including without limitation an agreement in principle, 
providing for (x) a merger or other business combination involving the 
Grantor in which the Grantor's stockholders do not own a majority of the 
outstanding capital stock of the entity surviving such merger or business 
combination immediately following such transaction or (y) the acquisition of 
20% or more of the assets of the Grantor and its subsidiaries, taken as a 
whole.


                                       5

<PAGE>

         8.   REGISTRATION RIGHTS.

              (a)  In the event that the Grantee shall desire to sell any of 
the Shares within two years after the purchase of such Shares pursuant 
hereto, and such sale requires, in the opinion of counsel to the Grantee, 
which opinion shall be reasonably satisfactory to the Grantor and its 
counsel, registration of such Shares under the Securities Act, the Grantor 
will cooperate with the Grantee and any underwriters in registering such 
Shares for resale, including, without limitation, promptly filing a 
registration statement which complies with the requirements of applicable 
federal and state securities laws, entering into an underwriting agreement 
with such underwriters upon such terms and conditions as are customarily 
contained in underwriting agreements with respect to secondary distributions; 
provided that the Grantor shall not be required to have declared effective 
more than two registration statements hereunder and shall be entitled to 
delay the filing or effectiveness of any registration statement for up to 120 
days if the offering would, in the judgment of the Board of Directors of the 
Grantor, require premature disclosure of any material corporate development 
or otherwise interfere with or adversely affect any pending or proposed 
offering of securities of the Grantor or any other material transaction 
involving the Grantor.

              (b)  If the Common Stock is registered pursuant to the 
provisions of this Section 8, the Grantor agrees (i) to furnish copies of the 
registration statement and the prospectus relating to the Shares covered 
thereby in such numbers as the Grantee may from time to time reasonably 
request and (ii) if any event shall occur as a result of which it becomes 
necessary to amend or supplement any registration statement or prospectus, to 
prepare and file under the applicable securities laws such amendments and 
supplements as may be necessary to keep effective for at least 90 days a 
prospectus covering the Common Stock meeting the requirements of such 
securities laws, and to furnish the Grantee such numbers of copies of the 
registration statement and prospectus as amended or supplemented as may 
reasonably be requested.  The Grantor shall bear the cost of the 
registration, including, but not limited to, all registration and filing 
fees, printing expenses, and fees and disbursements of counsel and 
accountants for the Grantor, except that the Grantee shall pay the fees and 
disbursements of its counsel, the underwriting fees and selling commissions 
applicable to the shares of Common Stock sold by the Grantee.  The Grantor 
shall indemnify and hold harmless Grantee, its affiliates and its officers, 
directors and controlling persons from and against any and all losses, 
claims, damages, liabilities and expenses arising out of or based upon any 
statements contained or incorporated by reference in, and omissions or 
alleged omissions from, each registration statement filed pursuant to this 
paragraph; provided, however, that this provision does not apply to any loss, 
liability, claim, damage or expense to the extent it arises out of any untrue 
statement or omission made in reliance upon and in conformity with written 
information furnished to the Grantor by the Grantee, its affiliates and its 
officers expressly for use in any registration statement (or any amendment 
thereto) or any preliminary prospectus filed pursuant to this paragraph.  The 
Grantor shall also indemnify and hold harmless each underwriter and each 
person who controls any underwriter within the meaning of either the 
Securities Act or the Securities Exchange Act of 1934, as amended, against 
any and all losses, claims, damages, liabilities and expenses arising out of 
or based upon any statements contained or incorporated by reference in, and 
omissions or alleged omissions from, each registration statement filed 
pursuant 

                                       6
<PAGE>

to this paragraph; provided, however, that this provision does not apply to 
any loss, liability, claim, damage or expense to the extent it arises out of 
any untrue statement or omission made in reliance upon and in conformity with 
written information furnished to the Grantor by the underwriters expressly 
for use in any registration statement (or any amendment thereto) or any 
preliminary prospectus filed pursuant to this paragraph.

         9.   PROFIT LIMITATION.  

              (a)  Notwithstanding any other provision of this Agreement, in no
event shall the Grantee's Total Profit (as hereinafter defined) exceed $65
million and, if it does exceed such amount, the Grantee, at its sole election,
shall, within five business days, either (a) deliver to the Grantor for
cancellation Shares (valued, for the purposes of this Section 9(a), at the
average closing sales price of the Common Stock on the NYSE Composite Tape for
the twenty consecutive trading days preceding the day on which the Grantee's
Total Profit exceeds $65 million) previously purchased by the Grantee, (b) pay
cash or other consideration to the Grantor or (c) undertake any combination
thereof, so that the Grantee's Total Profit shall not exceed $65 million after
taking into account the foregoing actions.

              (b)  As used herein, the term "Total Profit" shall mean the
aggregate amount (before taxes) of the following:  (i) the amount of cash
received by the Grantee pursuant to Section 7.3(c) of the Merger Agreement and
Section 1(c) hereof, (ii)(x) the net cash amount received by the Grantee
pursuant to the Grantor's repurchase of Shares pursuant to Section 7 hereof,
less (y) the Grantee's purchase price for such Shares, and (iii)(x) the amount
received by the Grantee pursuant to the sale of Shares (or any other securities
into which such Shares are converted or exchanged), less (y) the Grantee's
purchase price for such Shares.

         10.  EXPENSES.  Each party hereto shall pay its own expenses incurred
in connection with this Agreement, except as otherwise specifically provided
herein.

         11.  SPECIFIC PERFORMANCE.  The Grantor acknowledges that if the
Grantor fails to perform any of its obligations under this Agreement immediate
and irreparable harm or injury would be caused to the Grantee for which money
damages would not be an adequate remedy.  In such event, the Grantor agrees that
the Grantee shall have the right, in addition to any other rights it may have,
to specific performance of this Agreement.  Accordingly, if the Grantee should
institute an action or proceeding seeking specific enforcement of the provisions
hereof, the Grantor hereby waives the claim or defense that the Grantee has an
adequate remedy at law and hereby agrees not to assert in any such action or
proceeding the claim or defense that such a remedy at law exists.  The Grantor
further agrees to waive any requirements for the securing or posting of any bond
in connection with obtaining any such equitable relief.

         12.  NOTICE.  All notices, requests, demands and other communications
hereunder shall be deemed to have been duly given and made if in writing and if
served by personal delivery upon the party for whom it is intended or delivered
by registered or certified mail, return receipt requested, or if sent by
facsimile transmission, upon receipt of oral confirmation that such transmission
has been received, to the person at the address set forth

                                       7
<PAGE>

below, or such other address as may be designated in writing hereafter, in 
the same manner, by such person:

              If to the Grantee:

              Doubletree Corporation
              410 North 44th Street, Suite 700
              Phoenix, AZ  85008
              Attn:  Richard M. Kelleher
              Telecopy: (602) 220-6753

              With a copy to:

              Dewey Ballantine
              1301 Avenue of the Americas
              New York, NY 10019-6092
              Attn:  William J. Phillips, Esq.
              Telecopy: (212) 295-6333

              If to the Grantor:

              Promus Hotel Corporation
              755 Crossover Lane
              Memphis, TN  38117
              Attn:  Raymond E. Schultz
              Telecopy: (901) 374-5636

              With a copy to:

              Latham & Watkins
              633 West Fifth Street, Suite 4000
              Los Angeles, California 90071-2007
              Attn: John M. Newell, Esq.
              Telecopy: (213) 891-8763

         13.  PARTIES IN INTEREST.  This Agreement shall inure to the benefit 
of and be binding upon the parties named herein and their respective 
permitted successors and assigns; provided, however, that such successor in 
interest or assigns shall agree to be bound by the provisions of this 
Agreement.  Except as set forth in Section 8, nothing in this Agreement, 
express or implied, is intended to confer upon any person other than the 
Grantor or the Grantee, or their successors or assigns, any rights or 
remedies under or by reason of this Agreement.

         14.  ENTIRE AGREEMENT; AMENDMENTS.  This Agreement, together with 
the Merger Agreement and the other documents referred to therein, contains 
the entire agreement between the parties hereto with respect to the subject 
matter hereof and supersedes all prior and contemporaneous agreements and 
understandings, oral or written, with respect to such transactions.  This 
Agreement may not be changed, amended or modified orally, but may be changed 
only by an agreement in writing signed by the party against whom any waiver, 
change, amendment, modification or discharge may be sought.

                                       8
<PAGE>

         15.  ASSIGNMENT.  No party to this Agreement may assign any of its
rights or obligations under this Agreement without the prior written consent of
the other party hereto, except that the Grantee may assign its rights and
obligations hereunder to any of its direct or indirect wholly owned
subsidiaries, but no such transfer shall relieve the Grantee of its obligations
hereunder if such transferee does not perform such obligations.  Any assignment
made in violation of this Section 15 shall be void.

         16.  HEADINGS.  The section headings herein are for convenience only
and shall not affect the construction of this Agreement.

         17.  COUNTERPARTS.  This Agreement may be executed in any number of
counterparts, each of which, when executed, shall be deemed to be an original
and all of which together shall constitute one and the same document. 

         18.  GOVERNING LAW.  This Agreement shall be governed by and construed
in accordance with the laws of the State of Delaware (regardless of the laws
that might otherwise govern under applicable Delaware principles of conflicts of
law).

         19.  TERMINATION.  The right to exercise the Option granted pursuant
to this Agreement shall terminate at the earlier of (i) the Effective Time (as
defined in the Merger Agreement), (ii) the date on which the Grantee realizes a
Total Profit of $65 million, (iii) the date on which the Merger Agreement is
terminated; provided the Option is not exercisable at such time and does not
become exercisable simultaneous with such termination and (iv) 90 days after the
date the Option becomes exercisable (the date referred to in clause (iv) being
hereinafter referred to as the "Option Termination Date"); provided that, if the
Option cannot be exercised or the Shares cannot be delivered to the Grantee upon
such exercise because the conditions set forth in Section 2(a) or Section 2(b)
hereof have not yet been satisfied, the Option Termination Date shall be
extended until thirty days after such impediment to exercise has been removed.

         All representations and warranties contained in this Agreement shall
survive delivery of and payment for the Shares.

         20.  SEVERABILITY.  If any term, provision, covenant or restriction of
this Agreement is held by a court of competent jurisdiction to be invalid, void
or unenforceable, the remainder of the terms, provisions, covenants and
restrictions of this Agreement shall remain in full force and effect and shall
in no way be affected, impaired or invalidated.

         21.  PUBLIC ANNOUNCEMENT.  The Grantee will consult with the Grantor
and the Grantor will consult with the Grantee before issuing any press release
with respect to the initial announcement of this Agreement, the Option or the
transactions contemplated hereby and neither party shall issue any such press
release prior to such consultation except as may be required by law. 

                                       9
<PAGE>

                Signature page for Stock Option Agreement (Doubletree)



         IN WITNESS WHEREOF, the Grantee and the Grantor have caused this
Agreement to be signed by their respective duly authorized officers as of the
date first written above.

                                      DOUBLETREE CORPORATION



                                           /s/ Richard M. Kelleher
                                      ------------------------------------------
                                      By:  Richard M. Kelleher
                                      Its: President and Chief Executive Officer



                                      PROMUS HOTEL CORPORATION



                                           /s/ Raymond E. Schultz
                                      ------------------------------------------
                                      By:  Raymond E. Schultz
                                      Its: President and Chief Executive Officer


                                      S-1

<PAGE>

                           STOCK OPTION AGREEMENT (PROMUS)
                                           
         STOCK OPTION AGREEMENT, dated as of September 1, 1997 (the 
"Agreement"), between PROMUS HOTEL CORPORATION, a Delaware corporation (the 
"Grantee"), and DOUBLETREE CORPORATION, a Delaware corporation (the 
"Grantor").

         WHEREAS, the Grantee, Parent Holding Corp., a Delaware corporation 
("Parent"), and the Grantor are entering into an Agreement and Plan of 
Merger, dated as of the date hereof (the "Merger Agreement"), which provides, 
among other things, for the merger (the "Doubletree Merger") of a subsidiary 
of Parent with and into the Grantor and the merger (the "Promus Merger") of 
another subsidiary of Parent with and into the Grantee, such that the Grantor 
and the Grantee will become wholly-owned subsidiaries of Parent and the 
stockholders of the Grantor and the Grantee will become stockholders of 
Parent (the Doubletree Merger and the Promus Merger collectively, the 
"Mergers");

         WHEREAS, pursuant to a Stock Option Agreement dated as of the date 
hereof between the Grantee and the Grantor, the Grantee has granted the 
Grantor an option to acquire shares of common stock of the Grantee on terms 
that are substantially similar to the terms of this Agreement (the 
"Doubletree Option");

         WHEREAS, as a condition and inducement to their willingness to enter 
into the Merger Agreement and the Doubletree Option, the Grantee and Parent 
have requested that the Grantor grant to the Grantee an option to purchase 
7,898,003 shares of Common Stock, par value $0.01 per share, of the Grantor 
(the "Common Stock"), upon the terms and subject to the conditions hereof; and

         WHEREAS, in order to induce the Grantee to enter into the Merger 
Agreement and grant the Doubletree Option, the Grantor is willing to grant 
the Grantee the requested option.

         NOW, THEREFORE, in consideration of the premises and the mutual 
covenants and agreements set forth herein, the parties hereto agree as 
follows: 

         1.   THE OPTION; EXERCISE; ADJUSTMENTS; PAYMENT OF SPREAD.

              (a)  Contemporaneously herewith the Grantee, Parent and the 
Grantor are entering into the Merger Agreement.  Subject to the other terms 
and conditions set forth herein, the Grantor hereby grants to the Grantee an 
irrevocable option (the "Option") to purchase up to 7,898,003 (as adjusted as 
provided herein) shares of Common Stock (together with the associated 
purchase rights issued with respect thereto pursuant to the Rights Agreement 
dated as of September 1, 1997 between the Grantor and Harris Trust & Savings 
Bank (the "Grantor Rights Plan")) (the "Shares") at a per share cash purchase 
price equal to the lower of (i) $50.00 per Share or (ii) the average closing 
sales price of the Common Stock on the NASDAQ National Market ("NASDAQ") for 
the five consecutive trading days beginning on and including the day that the 
Mergers are publicly announced (as adjusted as provided herein) (such lower 
price being the "Purchase Price").  The Option may be exercised by the 
Grantee, in whole or in part, at any 


<PAGE>

time, or from time to time, following the occurrence of one of the events set 
forth in Section 2(c) hereof and prior to the termination of the Option in 
accordance with the terms of this Agreement.

              (b)  In the event the Grantee wishes to exercise the Option, 
the Grantee shall send a written notice to the Grantor (the "Stock Exercise 
Notice") specifying a date (subject to the HSR Act (as defined below)) not 
later than 10 business days and not earlier than the next business day 
following the date such notice is given for the closing of such purchase.  In 
the event of any change in the number of issued and outstanding shares of 
Common Stock by reason of any stock dividend, stock split, split-up, 
reclassification, recapitalization, merger or other change in the corporate 
or capital structure of the Grantor (including the occurrence of a 
Distribution Date under the Grantor Rights Plan), the number of Shares 
subject to this Option and the purchase price per Share shall be 
appropriately adjusted to restore the Grantee to its rights hereunder, 
including its right to purchase Shares representing 19.9% of the capital 
stock of the Grantor entitled to vote generally for the election of the 
directors of the Grantor which is issued and outstanding immediately prior to 
the exercise of the Option at an aggregate purchase price equal to the 
Purchase Price multiplied by 7,898,003 .  In the event that any additional 
shares of Common Stock are issued after the date of this Agreement (other 
than pursuant to an event described in the preceding sentence), the number of 
Shares subject to this Option shall be increased by 19.9% of the number of 
the additional shares of Common Stock so issued (and such additional Shares 
shall have a purchase price per share equal to the Purchase Price).

              (c)  If at any time the Option is then exercisable pursuant to 
the terms of Section 1(a) hereof, the Grantee may elect, in lieu of 
exercising the Option to purchase Shares provided in Section 1(a) hereof, to 
send a written notice to the Grantor (the "Cash Exercise Notice") specifying 
a date not later than 20 business days and not earlier than 10 business days 
following the date such notice is given on which date the Grantor shall pay 
to the Grantee an amount in cash equal to the Spread (as hereinafter defined) 
multiplied by all or such portion of the Shares subject to the Option as 
Grantee shall specify.  As used herein "Spread" shall mean the excess, if 
any, over the Purchase Price of the higher of (x) if applicable, the highest 
price per share of Common Stock (including any brokerage commissions, 
transfer taxes and soliciting dealers' fees) paid by any person in an 
Alternative Transaction (as defined in clause (i), (ii) or (iii) of Section 
7.3(e) of the Merger Agreement) (the "Alternative Purchase Price") or (y) the 
closing sales price of the shares of Common Stock on NASDAQ on the last 
trading day immediately prior to the date of the Cash Exercise Notice (the 
"Closing Price").  If the Alternative Purchase Price includes any property 
other than cash, the Alternative Purchase Price shall be the sum of (i) the 
fixed cash amount, if any, included in the Alternative Purchase Price plus 
(ii) the fair market value of such other property.  If such other property 
consists of securities with an existing public trading market, the average of 
the closing sales prices (or the average of the closing bid and asked prices 
if closing sales prices are unavailable) for such securities in their 
principal public trading market on the five trading days ending five days 
prior to the date of the Cash Exercise Notice shall be deemed to equal the 
fair market value of such property.  If such other property consists of 
something other than cash or securities with an existing public trading 
market and, as of the payment date for the Spread, agreement on the value of 
such other property has not been reached, the Alternative Purchase Price 
shall be deemed to equal the Closing Price.  Upon exercise of the Grantee's 
right to receive cash pursuant to this Section 1(c) and the 

                                     2

<PAGE>

payment of such cash to the Grantee, the obligations of the Grantor to 
deliver Shares pursuant to Section 3 shall be terminated with respect to such 
number of Shares for which the Grantee shall have elected to be paid the 
Spread.

         2.   CONDITIONS TO DELIVERY OF SHARES.  The Grantor's obligation to 
deliver Shares upon exercise of the Option is subject only to the conditions 
that:

              (a)  No preliminary or permanent injunction or other order 
issued by any federal or state court of competent jurisdiction in the United 
States prohibiting the delivery of the Shares shall be in effect; and

              (b)  Any applicable waiting periods under the Hart-Scott-Rodino 
Antitrust Improvements Act of 1976 (the "HSR Act") shall have expired or been 
terminated and all other consents, approvals, orders, notifications or 
authorizations, the failure of which to obtain or make would have the effect 
of making the issuance of the Shares illegal (collectively, the "Regulatory 
Approvals") shall have been obtained or made; and

              (c)  (i) a proposal for an Alternative Transaction (as defined 
in the Merger Agreement) involving the Grantor shall have been publicly 
announced prior to the time the Merger Agreement is terminated pursuant to 
the terms thereof (the "Merger Termination Date") and one or more of the 
following events shall have occurred on or after the time of the making of 
such proposal: (A) the requisite vote of the stockholders of the Grantor in 
favor of adoption and approval of the Merger Agreement shall not have been 
obtained at the Doubletree Stockholders' Meeting (as defined in the Merger 
Agreement) or any adjournment or postponement thereof; (B) the Board of 
Directors of the Grantor shall have withdrawn or modified its recommendation 
of the Merger Agreement or the Doubletree Merger or failed to confirm its 
recommendation of the Merger Agreement or the Doubletree Merger to the 
stockholders of the Grantor within ten business days after a written request 
by the Grantee to do so; (C) the Board of Directors of the Grantor shall have 
recommended to the stockholders of the Grantor an Alternative Transaction (as 
defined in the Merger Agreement); (D) a tender offer or exchange offer for 
20% or more of the outstanding shares of Grantor Common Stock shall have been 
commenced (other than by the Grantee or an affiliate of the Grantee) and the 
Board of Directors of the Grantor shall have recommended that the 
stockholders of the Grantor tender their shares in such tender or exchange 
offer; or (E) for any reason the Grantor shall have failed to call and hold 
the Doubletree Stockholders' Meeting (as defined in the Merger Agreement) by 
the Outside Date (as defined in the Merger Agreement); provided, however, 
that the Option may not be exercised if the Grantee is in material breach of 
any of its material representations, warranties, covenants or agreements 
contained in this Agreement or in the Merger Agreement; or (ii) the Merger 
Agreement shall have been terminated by the Grantor pursuant to Section 
7.1(g) of the Merger Agreement.

         3.   THE CLOSING.  

              (a)  Any closing hereunder shall take place on the date 
specified by the Grantee in its Stock Exercise Notice or Cash Exercise 
Notice, as the case may be, at 8:00 A.M., local time, at the offices of 
Latham & Watkins, 633 West Fifth Street, Suite 4000, Los Angeles, 

                                    3

<PAGE>

CA 90071, or, if the conditions set forth in Section 2(a) or 2(b) have not 
then been satisfied, on the second business day following the satisfaction of 
such conditions, or at such other time and place as the parties hereto may 
agree (the "Closing Date").  On the Closing Date, (i) in the event of a 
closing pursuant to Section 1(b) hereof, the Grantor will deliver to the 
Grantee a certificate or certificates, duly endorsed (or accompanied by duly 
executed stock powers), representing the Shares in the denominations 
designated by the Grantee in its Stock Exercise Notice and the Grantee will 
purchase such Shares from the Grantor at the price per Share equal to the 
Purchase Price or (ii) in the event of a closing pursuant to Section 1(c) 
hereof, the Grantor will deliver to the Grantee cash in an amount determined 
pursuant to Section 1(c) hereof.  Any payment made by the Grantee to the 
Grantor, or by the Grantor to the Grantee, pursuant to this Agreement shall 
be made by certified or official bank check or by wire transfer of federal 
funds to a bank designated by the party receiving such funds.

              (b)  The certificates representing the Shares may bear an 
appropriate legend relating to the fact that such Shares have not been 
registered under the Securities Act of 1933, as amended (the "Securities 
Act").

         4.   REPRESENTATIONS AND WARRANTIES OF THE GRANTOR.  The Grantor 
represents and warrants to the Grantee that (a) the Grantor is a corporation 
duly organized, validly existing and in good standing under the laws of the 
State of Delaware and has the requisite corporate power and authority to 
enter into and perform this Agreement; (b) the execution and delivery of this 
Agreement by the Grantor and the consummation by it of the transactions 
contemplated hereby have been duly authorized by the Board of Directors of 
the Grantor and this Agreement has been duly executed and delivered by a duly 
authorized officer of the Grantor and constitutes a valid and binding 
obligation of the Grantor, enforceable in accordance with its terms, subject 
to bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium 
and similar laws of general applicability relating to or affecting creditors' 
rights and to general equity principles; (c) the Grantor has taken all 
necessary corporate action to authorize and reserve the Shares issuable upon 
exercise of the Option and the Shares, when issued and delivered by the 
Grantor upon exercise of the Option, will be duly authorized, validly issued, 
fully paid and non-assessable and free of preemptive rights; (d) except as 
otherwise required by the HSR Act and other than any filings required under 
the blue sky laws of any states or by NASDAQ, the execution and delivery of 
this Agreement by the Grantor and the issuance of Shares upon exercise of the 
Option do not require the consent, waiver, approval or authorization of or 
any filing with any person or public authority and will not violate, result 
in a breach of or the acceleration of any obligation under, or constitute a 
default under, any provision of any charter or by-law, indenture, mortgage, 
lien, lease, agreement, contract, instrument, order, law, rule, regulation, 
judgment, ordinance, or decree, or restriction by which the Grantor or any of 
its subsidiaries or any of their respective properties or assets is bound; 
(e) no "fair price", "moratorium", "control share acquisition" or other form 
of antitakeover statute or regulation (including, without limitation, the 
restrictions on "business combinations" set forth in Section 203 of the 
Delaware General Corporation Law) is or shall be applicable to the 
acquisition of Shares pursuant to this Agreement (and the Board of Directors 
of Grantor has taken all action to approve the acquisition of the Shares to 
the extent necessary to avoid such application) and (f)  the Grantor has 
taken all corporate action necessary so that the grant and any 

                                    4

<PAGE>

subsequent exercise of the Option by the Grantee will not result in the 
separation or exercisability of rights under the Grantor Rights Plan..

         5.   REPRESENTATIONS AND WARRANTIES OF THE GRANTEE.  The Grantee 
represents and warrants to the Grantor that (a) the execution and delivery of 
this Agreement by the Grantee and the consummation by it of the transactions 
contemplated hereby have been duly authorized by all necessary corporate 
action on the part of the Grantee and this Agreement has been duly executed 
and delivered by a duly authorized officer of the Grantee and will constitute 
a valid and binding obligation of Grantee; and (b) the Grantee is acquiring 
the Option after the Grantee has been afforded the opportunity to obtain, and 
has obtained, sufficient information regarding the Grantor to make an 
informed investment decision with respect to the Grantee's purchase of the 
Shares issuable upon exercise thereof, and, if and when the Grantee exercises 
the Option, it will be acquiring the Shares issuable upon the exercise 
thereof for its own account and not with a view to distribution or resale in 
any manner which would be in violation of the Securities Act.

         6.   QUOTATION OF SHARES; HSR ACT FILINGS; REGULATORY APPROVALS. 
Subject to applicable law and the rules and regulations of NASDAQ, the 
Grantor will promptly file an application to have the Shares quoted on NASDAQ 
and will use its best efforts to obtain approval of such quotation and to 
file all necessary filings by the Grantor under the HSR Act; provided, 
however, that if the Grantor is unable to effect such quotation on NASDAQ by 
the Closing Date, the Grantor will nevertheless be obligated to deliver the 
Shares upon the Closing Date.  Each of the parties hereto will use its best 
efforts to obtain consents of all third parties and all Regulatory Approvals, 
if any, necessary to the consummation of the transactions contemplated.

         7.   REPURCHASE OF SHARES; SALE OF SHARES.  If a Change in Control 
Event has not occurred prior to the first anniversary date of the Merger 
Termination Date, then beginning on such anniversary date, the Grantor shall 
have the right to purchase (the "Repurchase Right") all, but not less than 
all, of the Shares then beneficially owned by the Grantee or any of its 
affiliates at a price per share equal to the greater of (i) the Purchase 
Price, or (ii) the average of the closing sales prices for shares of Common 
Stock on the twenty trading days ending five days prior to the date the 
Grantor gives written notice of its intention to exercise the Repurchase 
Right.  If the Grantor does not exercise the Repurchase Right within thirty 
days following the first anniversary of the Merger Termination Date, the 
Repurchase Right terminates.  In the event the Grantor wishes to exercise the 
Repurchase Right, the Grantor shall send a written notice to the Grantee 
specifying a date (not later than 10 business days and not earlier than the 
next business day following the date such notice is given) for the closing of 
such purchase.  For purposes of the Agreement, a "Change in Control Event" 
shall be deemed to have occurred if (i) any person or group has a acquired 
beneficial ownership of more than fifty percent (excluding the Shares) of the 
outstanding shares of Common Stock or (ii) the Grantor shall have entered 
into an agreement, including without limitation an agreement in principle, 
providing for (x) a merger or other business combination involving the 
Grantor in which the Grantor's stockholders do not own a majority of the 
outstanding capital stock of the entity surviving such merger or business 
combination immediately following such transaction or (y) the acquisition of 
20% or more of the assets of the Grantor and its subsidiaries, taken as a 
whole.

                                     5


<PAGE>

         8.   REGISTRATION RIGHTS.

              (a)  In the event that the Grantee shall desire to sell any of 
the Shares within two years after the purchase of such Shares pursuant 
hereto, and such sale requires, in the opinion of counsel to the Grantee, 
which opinion shall be reasonably satisfactory to the Grantor and its 
counsel, registration of such Shares under the Securities Act, the Grantor 
will cooperate with the Grantee and any underwriters in registering such 
Shares for resale, including, without limitation, promptly filing a 
registration statement which complies with the requirements of applicable 
federal and state securities laws, entering into an underwriting agreement 
with such underwriters upon such terms and conditions as are customarily 
contained in underwriting agreements with respect to secondary distributions; 
provided that the Grantor shall not be required to have declared effective 
more than two registration statements hereunder and shall be entitled to 
delay the filing or effectiveness of any registration statement for up to 120 
days if the offering would, in the judgment of the Board of Directors of the 
Grantor, require premature disclosure of any material corporate development 
or otherwise interfere with or adversely affect any pending or proposed 
offering of securities of the Grantor or any other material transaction 
involving the Grantor.

              (b)  If the Common Stock is registered pursuant to the 
provisions of this Section 8, the Grantor agrees (i) to furnish copies of the 
registration statement and the prospectus relating to the Shares covered 
thereby in such numbers as the Grantee may from time to time reasonably 
request and (ii) if any event shall occur as a result of which it becomes 
necessary to amend or supplement any registration statement or prospectus, to 
prepare and file under the applicable securities laws such amendments and 
supplements as may be necessary to keep effective for at least 90 days a 
prospectus covering the Common Stock meeting the requirements of such 
securities laws, and to furnish the Grantee such numbers of copies of the 
registration statement and prospectus as amended or supplemented as may 
reasonably be requested.  The Grantor shall bear the cost of the 
registration, including, but not limited to, all registration and filing 
fees, printing expenses, and fees and disbursements of counsel and 
accountants for the Grantor, except that the Grantee shall pay the fees and 
disbursements of its counsel, the underwriting fees and selling commissions 
applicable to the shares of Common Stock sold by the Grantee.  The Grantor 
shall indemnify and hold harmless Grantee, its affiliates and its officers, 
directors and controlling persons from and against any and all losses, 
claims, damages, liabilities and expenses arising out of or based upon any 
statements contained or incorporated by reference in, and omissions or 
alleged omissions from, each registration statement filed pursuant to this 
paragraph; provided, however, that this provision does not apply to any loss, 
liability, claim, damage or expense to the extent it arises out of any untrue 
statement or omission made in reliance upon and in conformity with written 
information furnished to the Grantor by the Grantee, its affiliates and its 
officers expressly for use in any registration statement (or any amendment 
thereto) or any preliminary prospectus filed pursuant to this paragraph.  The 
Grantor shall also indemnify and hold harmless each underwriter and each 
person who controls any underwriter within the meaning of either the 
Securities Act or the Securities Exchange Act of 1934, as amended, against 
any and all losses, claims, damages, liabilities and expenses arising out of 
or based upon any statements contained or incorporated by reference in, and 
omissions or alleged omissions from, each registration statement filed 
pursuant 

                                    6

<PAGE>

to this paragraph; provided, however, that this provision does not apply to 
any loss, liability, claim, damage or expense to the extent it arises out of 
any untrue statement or omission made in reliance upon and in conformity with 
written information furnished to the Grantor by the underwriters expressly 
for use in any registration statement (or any amendment thereto) or any 
preliminary prospectus filed pursuant to this paragraph.

         9.   PROFIT LIMITATION.  

              (a)  Notwithstanding any other provision of this Agreement, in 
no event shall the Grantee's Total Profit (as hereinafter defined) exceed $65 
million and, if it does exceed such amount, the Grantee, at its sole 
election, shall, within five business days, either (a) deliver to the Grantor 
for cancellation Shares (valued, for the purposes of this Section 9(a), at 
the average closing sales price of the Common Stock on NASDAQ for the twenty 
consecutive trading days preceding the day on which the Grantee's Total 
Profit exceeds $65 million) previously purchased by the Grantee, (b) pay cash 
or other consideration to the Grantor or (c) undertake any combination 
thereof, so that the Grantee's Total Profit shall not exceed $65 million 
after taking into account the foregoing actions.

              (b)  As used herein, the term "Total Profit" shall mean the 
aggregate amount (before taxes) of the following: (i) the amount of cash 
received by the Grantee pursuant to Section 7.3(b) of the Merger Agreement 
and Section 1(c) hereof, (ii)(x) the net cash amount received by the Grantee 
pursuant to the Grantor's repurchase of Shares pursuant to Section 7 hereof, 
less (y) the Grantee's purchase price for such Shares, and (iii)(x) the 
amount received by the Grantee pursuant to the sale of Shares (or any other 
securities into which such Shares are converted or exchanged), less (y) the 
Grantee's purchase price for such Shares.

         10.  EXPENSES.  Each party hereto shall pay its own expenses 
incurred in connection with this Agreement, except as otherwise specifically 
provided herein.

         11.  SPECIFIC PERFORMANCE.  The Grantor acknowledges that if the 
Grantor fails to perform any of its obligations under this Agreement 
immediate and irreparable harm or injury would be caused to the Grantee for 
which money damages would not be an adequate remedy.  In such event, the 
Grantor agrees that the Grantee shall have the right, in addition to any 
other rights it may have, to specific performance of this Agreement.  
Accordingly, if the Grantee should institute an action or proceeding seeking 
specific enforcement of the provisions hereof, the Grantor hereby waives the 
claim or defense that the Grantee has an adequate remedy at law and hereby 
agrees not to assert in any such action or proceeding the claim or defense 
that such a remedy at law exists.  The Grantor further agrees to waive any 
requirements for the securing or posting of any bond in connection with 
obtaining any such equitable relief.

         12.  NOTICE.  All notices, requests, demands and other 
communications hereunder shall be deemed to have been duly given and made if 
in writing and if served by personal delivery upon the party for whom it is 
intended or delivered by registered or certified mail, return receipt 
requested, or if sent by facsimile transmission, upon receipt of oral 
confirmation that such transmission has been received, to the person at the 
address set forth 

                                    7

<PAGE>

below, or such other address as may be designated in writing hereafter, in 
the same manner, by such person:

         If to the Grantee:

         Promus Hotel Corporation
         755 Crossover Lane
         Memphis, TN  38117
         Attn:  Raymond E. Schultz
         Telecopy: (901) 374-5636

         With a copy to:

         Latham & Watkins
         633 West Fifth Street, Suite 4000
         Los Angeles, California 90071-2007
         Attn: John M. Newell, Esq.
         Telecopy: (213) 891-8763

         If to the Grantor:

         Doubletree Corporation
         North 44th Street, Suite 700
         Phoenix, AZ  85008
         Attn:  Richard M. Kelleher
         Telecopy: (602) 220-6753

         With a copy to:

         Dewey Ballantine
         1301 Avenue of the Americas
         New York, NY 10019-6092
         Attn:  William J. Phillips, Esq.
         Telecopy: (212) 295-6333

         13.  PARTIES IN INTEREST.  This Agreement shall inure to the benefit 
of and be binding upon the parties named herein and their respective 
permitted successors and assigns; provided, however, that such successor in 
interest or assigns shall agree to be bound by the provisions of this 
Agreement.  Except as set forth in Section 8, nothing in this Agreement, 
express or implied, is intended to confer upon any person other than the 
Grantor or the Grantee, or their successors or assigns, any rights or 
remedies under or by reason of this Agreement.

         14.  ENTIRE AGREEMENT; AMENDMENTS.  This Agreement, together with 
the Merger Agreement and the other documents referred to therein, contains 
the entire agreement between the parties hereto with respect to the subject 
matter hereof and supersedes all prior and contemporaneous agreements and 
understandings, oral or written, with respect to such transactions.  This 
Agreement may not be changed, amended or modified orally, but may be changed 
only by an agreement in writing signed by the party against whom any waiver, 
change, amendment, modification or discharge may be sought.

                                    8

<PAGE>

         15.  ASSIGNMENT.  No party to this Agreement may assign any of its 
rights or obligations under this Agreement without the prior written consent 
of the other party hereto, except that the Grantee may assign its rights and 
obligations hereunder to any of its direct or indirect wholly owned 
subsidiaries, but no such transfer shall relieve the Grantee of its 
obligations hereunder if such transferee does not perform such obligations.  
Any assignment made in violation of this Section 15 shall be void.

         16.  HEADINGS.  The section headings herein are for convenience only 
and shall not affect the construction of this Agreement.

         17.  COUNTERPARTS.  This Agreement may be executed in any number of 
counterparts, each of which, when executed, shall be deemed to be an original 
and all of which together shall constitute one and the same document. 

         18.  GOVERNING LAW.  This Agreement shall be governed by and 
construed in accordance with the laws of the State of Delaware (regardless of 
the laws that might otherwise govern under applicable Delaware principles of 
conflicts of law).

         19.  TERMINATION.  The right to exercise the Option granted pursuant 
to this Agreement shall terminate at the earlier of (i) the Effective Time 
(as defined in the Merger Agreement), (ii) the date on which the Grantee 
realizes a Total Profit of $65 million, (iii) the date on which the Merger 
Agreement is terminated; provided that the Option is not exercisable at such 
time and does not become exercisable simultaneous with such termination and 
(iv) 90 days after the date the Option becomes exercisable (the date referred 
to in clause (iv) being hereinafter referred to as the "Option Termination 
Date"); provided that, if the Option cannot be exercised or the Shares cannot 
be delivered to the Grantee upon such exercise because the conditions set 
forth in Section 2(a) or Section 2(b) hereof have not yet been satisfied, the 
Option Termination Date shall be extended until thirty days after such 
impediment to exercise has been removed.

         All representations and warranties contained in this Agreement shall 
survive delivery of and payment for the Shares.

         20.  SEVERABILITY.  If any term, provision, covenant or restriction 
of this Agreement is held by a court of competent jurisdiction to be invalid, 
void or unenforceable, the remainder of the terms, provisions, covenants and 
restrictions of this Agreement shall remain in full force and effect and 
shall in no way be affected, impaired or invalidated.

         21.  PUBLIC ANNOUNCEMENT.  The Grantee will consult with the Grantor 
and the Grantor will consult with the Grantee before issuing any press 
release with respect to the initial announcement of this Agreement, the 
Option or the transactions contemplated hereby and neither party shall issue 
any such press release prior to such consultation except as may be required 
by law. 

                                    9

<PAGE>

              Signature Page for Stock Option Agreement (Promus)

          IN WITNESS WHEREOF, the Grantee and the Grantor have caused this 
Agreement to be signed by their respective duly authorized officers as of the 
date first written above.

                                           DOUBLETREE CORPORATION



                                           /S/ Richard M. Kelleher
                                   ------------------------------------------
                                    By:  Richard M. Kelleher
                                   Its: President and Chief Executive Officer
     


                                          PROMUS HOTEL CORPORATION
     


                                          /S/ Raymond E. Schultz
                                   ------------------------------------------
                                     By:  Raymond E. Schultz
                                    Its:  President and Chief Executive Officer
     

                                    S-1

<PAGE>


                         STOCKHOLDER SUPPORT AGREEMENT

          STOCKHOLDER SUPPORT AGREEMENT dated as of September 1, 1997 (this 
"Agreement"), by GE Investment Management Incorporated ("GEIM"), GE 
Investment Hotel Partners I, Limited Partnership ("GEHOP" and together with 
GEIM, the "GE Entities"), the Trustees of General Electric Pension Trust 
("GEPT"), Red Lion, a California limited partnership ("Red Lion"), Richard J. 
Ferris ("Ferris"), Ridge Partners, L.P. ("Ridge"), Kelrick, Inc. ("Kelrick" 
and together with Ferris and Ridge, the "Ferris Entities"), Peter V. 
Ueberroth ("Ueberroth"), The Ueberroth Family Trust ("Ueberroth FT") and The 
Ueberroth Investment Trust ("Ueberroth IT" and together with Ueberroth and 
Ueberroth FT, the "Ueberroth Entities"), to and for the benefit of Promus 
Hotel Corporation, a Delaware corporation ("Promus").  Each of the GE 
Entities, GEPT, Red Lion, the Ferris Entities and the Ueberroth Entities are 
referred to herein as a "Stockholder" and collectively as the "Stockholders." 
Capitalized terms used and not otherwise defined herein shall have the 
respective meanings assigned to them in the Merger Agreement referred to 
below.

          WHEREAS, as of the date hereof, the GE Entities own of record and 
beneficially 6,060,981 shares (such shares, together with any other voting or 
equity securities of Doubletree hereafter acquired by the GE Entities prior 
to the termination of this Agreement, being referred to herein collectively 
as the "GE Shares") of common stock, par value $.01 per share ("Doubletree 
Common Stock"), of Doubletree Corporation, a Delaware corporation 
("Doubletree"); 

          WHEREAS, as of the date hereof, GEPT owns of record and 
beneficially 3,027,441 shares (such shares, together with any other voting or 
equity securities of Doubletree hereafter acquired by GEPT prior to the 
termination of this Agreement, being referred to herein collectively as "GEPT 
Shares") of Doubletree Common Stock; 

          WHEREAS, as of the date hereof, Red Lion owns of record and 
beneficially 3,882,283 shares (such shares, together with any other voting or 
equity securities of Doubletree hereafter acquired by Red Lion prior to the 
termination of this Agreement, being referred to herein collectively as the 
"Red Lion Shares") of Doubletree Common Stock;

          WHEREAS, as of the date hereof, the Ferris Entities own of record 
and beneficially 1,576,182 shares (such shares, together with any other 
voting or equity securities of Doubletree hereafter acquired by the Ferris 
Entities prior to the termination of this Agreement, being referred to herein 
collectively as the "Ferris Shares") of Doubletree Common Stock; 

          WHEREAS, as of the date hereof, the Ueberroth Entities own of 
record and beneficially 1,124,182 shares (such shares, together with any 
other voting or equity securities of Doubletree hereafter acquired by the 
Ueberroth Entities prior to the termination of this Agreement, being referred 
to herein collectively as the "Ueberroth Shares" and, together with the GE 
Shares, the GEPT Shares, the Red Lion Shares and the Ferris Shares, the 
"Shares") of Doubletree Common Stock;

<PAGE>

          WHEREAS, concurrently with the execution of this Agreement, 
Doubletree, Promus and Parent Holding Corp., a Delaware corporation 
("Parent"), are entering into an Agreement and Plan of Merger, dated as of 
the date hereof (the "Merger Agreement"), pursuant to which, upon the terms 
and subject to the conditions thereof, (i) a newly formed subsidiary of 
Parent will be merged with and into Doubletree (the "Doubletree Merger"), and 
(ii) a second newly formed subsidiary of Parent will be merged with and into 
Promus (the "Promus Merger") such that Doubletree and Promus will become 
wholly-owned subsidiaries of Parent and the stockholders of Doubletree and 
Promus will become stockholders of Parent; and

          WHEREAS, as a condition to the willingness of Promus and Doubletree 
to enter into the Merger Agreement and the Stock Option Agreements (as 
defined in the Merger Agreement), Promus has requested the Stockholders 
agree, and in order to induce Promus to enter into the Merger Agreement and 
the Stock Option Agreements, the Stockholders are willing to agree, severally 
but not jointly, to vote in favor of adopting the Merger Agreement and 
approving the Doubletree Merger, upon the terms and subject to the conditions 
set forth herein.

          NOW, THEREFORE, in consideration of the foregoing and the mutual 
covenants and agreements contained herein, and intending to be legally bound 
hereby, the parties hereby agree, severally and not jointly, as follows:

          Section 1.  VOTING OF SHARES.  Until the termination of this 
Agreement in accordance with the terms hereof, each Stockholder hereby agrees 
that, at the Doubletree Stockholders' Meeting or any other meeting of the 
stockholders of Doubletree, however called, and in any action by written 
consent of the stockholders of Doubletree, such Stockholder will vote all of 
its respective Shares (a) in favor of adoption of the Merger Agreement and 
approval of the Doubletree Merger and the other transactions contemplated by 
the Merger Agreement, and (b) in favor of any other matter necessary to the 
consummation of the transactions contemplated by the Merger Agreement and 
considered and voted upon by the stockholders of Doubletree (or any class 
thereof).  In addition, each Stockholder agrees that it will, upon request by 
Promus, furnish written confirmation, in form and substance reasonably 
satisfactory to Promus, of such Stockholder's support for the Merger 
Agreement and the Doubletree Merger.  Each Stockholder acknowledges receipt 
and review of a copy of the Merger Agreement.

          Section 2.  TRANSFER OF SHARES.  Each Stockholder represents and 
warrants that it has no present intention of taking any action, prior to the 
termination of this Agreement in accordance with the terms hereof, to, 
directly or indirectly, (a) sell, assign, transfer (including by merger, 
testamentary disposition, interspousal disposition pursuant to a domestic 
relations proceeding or otherwise by operation of law), pledge, encumber or 
otherwise dispose of any of its respective Shares, (b) deposit any of its 
respective Shares into a voting trust or enter into a voting agreement or 
arrangement with respect to any such Shares or grant any proxy or power of 
attorney with respect thereto which is inconsistent with this Agreement or 
(c) enter into any contract, option or other arrangement or undertaking with 
respect to the direct or indirect sale, assignment, transfer (including by 
merger, testamentary disposition, interspousal disposition pursuant to a 
domestic relations proceeding or otherwise by operation of law) or other 
disposition of any Shares.

                                       2

<PAGE>

          Section 3.  NO SOLICITATION.  Prior to the termination of this 
Agreement in accordance with its terms, each Stockholder agrees (a) that it 
will not, nor will it authorize or permit any of its officers, directors, 
employees, agents and representatives to, directly or indirectly, initiate or 
solicit any inquiries or the making of any Acquisition Proposal and (b) that 
it will notify Promus as soon as possible (and in any event within 48 hours) 
if any such inquiries or proposals are received by, any information or 
documents is requested from, or any negotiations or discussions are sought to 
be initiated or continued with, it or any of its affiliates. 

          Section 4.  TERMINATION.  This Agreement shall terminate upon the 
earliest to occur of (i) the Effective Time or (ii) any termination of the 
Merger Agreement in accordance with the terms thereof; provided that the 
provisions of Section 7 shall survive any termination of this Agreement, and 
provided further that no such termination shall relieve any party of 
liability for a breach hereof prior to termination.

          Section 5.  REGISTRATION RIGHTS.  Until the termination of this 
Agreement in accordance with the terms hereof, no Stockholder will exercise 
any of its rights to request or require registration of any securities under 
the Incorporation and Registration Rights Agreement dated as of December 16, 
1993, as amended on June 30, 1994, February 27, 1996 and November 8, 1996, by 
and among Doubletree and certain stockholders of Doubletree (the 
"Registration Rights Agreement).

          Section 6.  SPECIFIC PERFORMANCE.  The parties hereto agree that 
irreparable damage would occur in the event any provision of this Agreement 
was not performed in accordance with the terms hereof and that the parties 
shall be entitled to specific performance of the terms hereof, in addition to 
any other remedy at law or in equity.

          Section 7.  MISCELLANEOUS.  

          (a)  This Agreement constitutes the entire agreement between the 
parties hereto with respect to the subject matter hereof and supersedes all 
prior agreements and understandings, both written and oral, between the 
parties with respect thereto.  This Agreement may not be amended, modified or 
rescinded except by an instrument in writing signed by each of the parties 
hereto.

          (b)  If any term or other provision of this Agreement is invalid, 
illegal or incapable of being enforced by any rule of law, or public policy, 
all other conditions and provisions of this Agreement shall nevertheless 
remain in full force and effect.  Upon such determination that any term or 
other provision is invalid, illegal or incapable of being enforced, the 
parties hereto shall negotiate in good faith to modify this Agreement so as 
to effect the original intent of the parties as closely as possible to the 
fullest extent permitted by applicable law in a mutually acceptable manner in 
order that the terms of this Agreement remain as originally contemplated to 
the fullest extent possible.

          (c)  This Agreement shall be governed by and construed in 
accordance with the laws of the State of Delaware without regard to the 
principles of conflicts of law thereof.

                                       3

<PAGE>

          (d)  Notwithstanding anything herein to the contrary, the covenants 
and agreements set forth herein shall not prevent any of the Stockholders' 
designees, partners or affiliates serving on the Board of Directors of 
Doubletree from taking any action, subject to the applicable provisions of 
the Merger Agreement, while acting in such capacity as a director of 
Doubletree.

          (e)  Notwithstanding any provisions hereof, none of the obligations 
of any Stockholder under or contemplated by this Agreement shall be an 
obligation of (i) any officer, director, stockholder, limited partner, 
general partner or owner of such Stockholder, or any of their respective 
officers, directors, stockholders, limited partners, general partners or 
owners, or successors or assigns or (ii) any other Stockholder.  Each 
Stockholder shall be the only person or entity liable with respect to its 
obligations.  Any monetary liability of a Stockholder under this Agreement 
shall be satisfied solely out of the assets of such Stockholder.  Each 
Stockholder hereby irrevocably waives any right it may have against any such 
officer, director, stockholder, limited partner, general partner, owner, 
successor or assign identified above as a result of the performance of the 
provisions under or contemplated by this Agreement.  Nothing in this Section 
7(e) shall prevent Promus from obtaining specific enforcement of the 
obligations of any Stockholder under this Agreement.

          (f)  This Agreement may be executed in counterparts, each of which 
shall be deemed an original and all of which together shall constitute one 
and the same instrument.          

                                       4

<PAGE>

                 Signature Page for Stockholder Support Agreement




         IN WITNESS WHEREOF, each of the parties hereto has caused this 
Agreement to be signed by their respective duly authorized officers as of the 
date first written above.

                             GE INVESTMENT MANAGEMENT INCORPORATED
    
                                   /s/ John Myers 
                             ----------------------------------------
                             By:  John Myers
                             Its:
         
                             GE INVESTMENT HOTEL PARTNERS I, LIMITED PARTNERSHIP
    
                             By:  GE Investment Management Inc.
                             Its:  General Partner
         
                                       /s/ John Myers 
                                 ------------------------------------
                                 By:  John Myers
                                 Its:
         
                             TRUSTEES OF GENERAL ELECTRIC PENSION TRUST

                                    /s/ John Myers 
                             ------------------------------------------
                             By:  John Myers
                             Its:
         
                             RED LION
    
                             By:  RLA-GP, Inc.
                             Its:  General Partner
         
                                       /s/ Michael Michelson    
                                  ------------------------------------
                                  By:  Michael Michelson
                                  Its:
                                       
    
                                    S-1
<PAGE>

                 Signature Page for Stockholder Support Agreement


                                   /s/ Richard J. Ferris    
                             -----------------------------------------
                             Richard J. Ferris
         
    
         
                             RIDGE PARTNERS, L.P.
    
                             By:  Kelrick, Inc.
                             Its:  General Partner
         
                                  /s/ Richard J. Ferris    
                             -----------------------------------------
                             By:  Richard J. Ferris
                             Its:  President
         
                             KELRICK, INC.
    
                                   /s/  Richard J. Ferris   
                             -----------------------------------------
                             By:  Richard J. Ferris
                             Its:  President
         
    
    
                                    /s/ Peter V. Ueberroth   
                             -----------------------------------------
                             Peter V. Ueberroth
         
    
         
                             THE UEBERROTH FAMILY TRUST
    
                                  /s/ Peter V. Ueberroth   
                             -----------------------------------------
                             By:  Peter V. Ueberroth
                             Its:  Trustee


                                   S-2
<PAGE>

                 Signature Page for Stockholder Support Agreement



                             THE UEBERROTH INVESTMENT TRUST
    
                                  /s/ Peter V. Ueberroth   
                             ----------------------------------------
                             By:  Peter V. Ueberroth

                             Its:  Trustee
         
    
         
Agreed and Acknowledged:

PROMUS HOTEL CORPORATION

        /s/ Raymond E. Schultz    
- -------------------------------------------
By:  Raymond E. Schultz
Its:  President and Chief Executive Officer

    

                                    S-3


         

<PAGE>


                                   RESTATED
                         CERTIFICATE OF INCORPORATION
                                       OF
                           PROMUS HOTEL CORPORATION

     The present name of the Corporation is Promus Hotel Corporation.  The 
Corporation was incorporated under the name "Parent Holding Corp." by the 
filing of its original Certificate of Incorporation with the Secretary of 
State of the State of Delaware on August 29, 1997.  This Restated Certificate 
of Incorporation of the Corporation, which both restates and further amends 
the provisions of the Corporation's Certificate of Incorporation, was duly 
adopted in accordance with the provisions of Sections 242 and 245 of the 
General Corporation Law of the State of Delaware and by the written consent 
of stockholders in accordance with Section 228 of the General Corporation Law 
of the State of Delaware.  The Certificate of Incorporation of the 
Corporation is hereby amended and restated to read in its entirety as follows:

     FIRST:  The name of the Corporation is Promus Hotel Corporation. 

     SECOND:  The address of the registered office of the Corporation in the 
State of Delaware is Corporation Service Company, 1013 Centre Road, in the 
City of Wilmington, County of New Castle, State of Delaware.  The name of its 
registered agent at that address is Corporation Service Company. 

     THIRD:  The purpose of the Corporation is to engage in any lawful act or 
activity for which a corporation may be organized under the General 
Corporation Law of Delaware as set forth in Title 8 of the Delaware Code (the 
"GCL"). 

     FOURTH:  A.  The total number of shares of stock which the Corporation 
shall have authority to issue is 510,000,000 (the "Capital Stock") consisting 
of 500,000,000 shares of Common Stock, par value $0.01 per share (the "Common 
Stock"),  and 10,000,000 shares of Preferred Stock, par value of $.01 per 
share (the "Preferred Stock"). 

     B.  Shares of Preferred Stock may be issued from time to time in one or 
more series, as provided for herein or as provided for by the Board of 
Directors as permitted hereby.  All shares of Preferred Stock shall be of 
equal rank and shall be identical, except in respect of the terms fixed 
herein for the series provided for herein or fixed by the Board of Directors 
for series provided for by the Board of Directors as permitted hereby.  All 
shares of any one series shall be identical in all respects with all the 
other shares of such series, except the shares of any one series issued at 
different times may differ as to the dates from which dividends thereon may 
be cumulative. 

     The Board of Directors is hereby authorized, by resolution or 
resolutions, to establish, out of the unissued shares of Preferred Stock not 
then allocated to any series of Preferred Stock, additional series of 
Preferred Stock.  Before any shares of any such additional series are issued, 
the Board of Directors shall fix and determine, and is hereby expressly 
empowered to fix and determine, by resolution or resolutions, the number of 
shares constituting such series and the distinguishing characteristics and 
the relative rights, preferences, privileges and immunities, if 


<PAGE>

any, and any qualifications, limitations or restrictions thereof, of the 
shares thereof, so far as not inconsistent with the provisions of this 
Article FOURTH.  Without limiting the generality of the foregoing, the Board 
of Directors may fix and determine: 

          1.   The designation of such series and the number of shares which 
     shall constitute such series of such shares; 

          2.   The rate of dividend, if any, payable on shares of such series; 

          3.    Whether the shares of such series shall be cumulative, 
     non-cumulative or partially cumulative as to dividends, and the dates 
     from which any cumulative dividends are to accumulate; 

          4.   Whether the shares of such series may be redeemed, and, if so, 
     the price or prices at which and the terms and conditions on which 
     shares of such series may be redeemed; 

          5.   The amount payable upon shares of such series in the event of 
     the voluntary or involuntary dissolution, liquidation or winding up of 
     the affairs of the Corporation; 

          6.   The sinking fund provisions, if any, for the redemption of 
     shares of such series; 

          7.   The voting rights, if any, of the shares of such series; 

          8.   The terms and conditions, if any, on which shares of such 
     series may be converted into shares of capital stock of the Corporation 
     of any other class or series; 

          9.   Whether the shares of such series are to be preferred over 
     shares of capital stock of the Corporation of any other class or series 
     as to dividends, or upon the voluntary or involuntary dissolution, 
     liquidation, or winding up of the affairs of the Corporation, or 
     otherwise; and 

          10.  Any other characteristics, preferences, limitations, rights, 
     privileges, immunities or terms not inconsistent with the provisions of 
     this Article FOURTH. 

     C.  Except as otherwise provided in this Restated Certificate of 
Incorporation, each holder of Common Stock shall be entitled to one vote for 
each share of Common Stock held by him on all matters submitted to 
stockholders for a vote and each holder of Preferred Stock of any series that 
is Voting Stock shall be entitled to such number of votes for each share held 
by him as may be specified in the resolutions providing for the issuance of 
such series.

     Except as otherwise provided by law, the presence, in person or by 
proxy, of the holders of record of issued and outstanding shares of Capital 
Stock entitling the holders thereof to cast a majority of the votes entitled 
to be cast by the holders of issued and outstanding shares of Capital Stock 
entitled to vote shall constitute a quorum at all meetings of the 
stockholders. 


                                       2

<PAGE>

     FIFTH:  A.  The Board of Directors shall have the power to make, adopt, 
alter, amend, change or repeal the Bylaws of the Corporation by resolution 
adopted by the affirmative vote of a majority of the entire Board of 
Directors, subject to any bylaw requiring the affirmative vote of a larger 
percentage of the members of the Board of Directors.

     B.  Stockholders may not make, adopt, alter, amend, change or repeal the 
Bylaws of the Corporation except upon the affirmative vote of at least 75% of 
the votes entitled to be cast by the holders of all outstanding shares then 
entitled to vote generally in the election of directors, voting together as a 
single class.

    SIXTH:  The business and affairs of the Corporation shall be managed by 
or under the direction of the Board of Directors, which shall consist of not 
less than three or more than twenty directors, the exact number of directors 
to be determined from time to time by resolution adopted by affirmative vote 
of a majority of the entire Board of Directors, subject to any bylaw 
requiring the affirmative vote of a larger percentage of the members of the 
Board of Directors.  The Board of Directors shall be divided into three 
classes, designated Class I, Class II and Class III.  Class I shall consist 
of four directors, and each of Class II and Class III shall consist of five 
directors. Class I directors shall be initially elected for a term expiring 
at the first annual meeting of stockholders of the Corporation following the 
date hereof, Class II directors shall be initially elected for a term 
expiring at the second annual meeting of stockholders of the Corporation 
following the date hereof, and Class III directors shall be initially elected 
for a term expiring at the third annual meeting of stockholders of the 
Corporation following the date hereof.  At each succeeding annual meeting of 
stockholders, beginning in 1999, successors to the class of directors whose 
term expires at that annual meeting shall be elected for a three year term.  
If the number of directors is changed, any increase or decrease shall be 
apportioned among the classes so as to maintain the number of directors in 
each class as nearly equal as possible, and any additional director of any 
class elected to fill a vacancy resulting from an increase in such class 
shall hold office for a term that shall coincide with the remaining term of 
that class, but in no case will a decrease in the number of directors shorten 
the term of any incumbent director.  A director shall hold office until the 
annual meeting for the year in which his term expires and until his successor 
shall be elected and shall qualify, subject, however, prior to death, 
resignation, retirement, disqualification or removal from office.  Any 
vacancy on the Board of Directors that results from an increase in the number 
of directors and any other vacancy may only be filled by a majority of the 
directors then in office, even if less than a quorum, or by a sole remaining 
director.  Any director elected to fill a vacancy not resulting from an 
increase in the number of directors shall have the same remaining term as 
that of his predecessor.

     Notwithstanding the foregoing, whenever the holders of any one or more 
series of Preferred Stock issued by the Corporation shall have the right, 
voting separately by class or series, to elect directors at an annual or 
special meeting of stockholders, the election, term of office, removal, 
filling of vacancies and other features of such directorships shall be 
governed by the terms of this Restated Certificate of Incorporation 
applicable thereto (including the resolutions of the Board of Directors 
pursuant to Article FOURTH hereof), and such Directors so elected shall not 
be divided into classes pursuant to this Article SIXTH unless expressly 
provided by such terms.


                                       3

<PAGE>

     SEVENTH:  Special meetings of the stockholders of the Corporation, for 
any purpose or purposes, may only be called at any time by a majority of the 
entire Board of Directors or by either the Chairman or the President of the 
Corporation.

     EIGHTH:   No stockholder action may be taken except at an annual or 
special meeting of stockholders of the Corporation and stockholders of the 
corporation may not take any action by written consent in lieu of a meeting.

     NINTH:  A.  In addition to any affirmative vote required by law or this 
Restated Certificate of Incorporation (including any resolutions of the Board 
of Directors pursuant to Article FOURTH hereof) or the Bylaws of the 
Corporation, and except as otherwise expressly provided in Section B of this 
Article NINTH, a Business Combination (as hereinafter defined) with, or 
proposed by or on behalf of, any Interested Stockholder (as hereinafter 
defined) or any Affiliate or Associate (as hereinafter defined) of any 
Interested Stockholder or any person who thereafter would be an Affiliate or 
Associate of such Interested Stockholder shall, except as otherwise 
prohibited by applicable law, require the affirmative vote of (i) not less 
than 75% of the votes entitled to be cast by the holders of all of the then 
outstanding shares of Voting Stock (as hereinafter defined), voting together 
as a single class and (ii) not less than a majority of the votes entitled to 
be cast by holders of all the then outstanding Voting Stock, voting together 
as a single class, excluding Voting Stock beneficially owned by such 
Interested Stockholder.  Such affirmative vote shall be required 
notwithstanding the fact that no vote may be required, or that a lesser 
percentage or separate class vote may be specified, by law or in any 
agreement with any national securities exchange or otherwise.

     B.  The provisions of Section A of this Article NINTH shall not be 
applicable to any particular Business Combination, and such Business 
Combination shall require only such affirmative vote, if any, as is required 
by law or by any other provision of this Restated Certification of 
Incorporation (including any resolutions of the Board of Directors pursuant 
to Article FOURTH hereof) or the Bylaws of the Corporation, or any agreement 
with any national securities exchange, if all the conditions specified in 
either of the following Paragraphs 1 or 2 are met or, in the case of Business 
Combination not involving the payment of consideration to the holders of the 
Corporation's outstanding Capital Stock (as hereinafter defined), if the 
condition specified in the following Paragraph 1 is met:

          1.  The Business Combination shall have been approved, either 
     specifically or as a transaction which is in an approved category of 
     transactions, by a majority (whether such approval is made prior to or 
     subsequent to the acquisition of, or announcement or public disclosure 
     of the intention to acquire, beneficial ownership of the Voting Stock 
     that caused the Interested Stockholder to become an Interested 
     Stockholder) of the Continuing Directors (as hereinafter defined).

          2.  All of the following conditions shall have been met:

              a.  The aggregate amount of cash and the Fair Market Value (as 
          hereinafter defined), as of the date of the consummation of the 
          Business Combination of consideration other than cash to be 
          received per share by holders 


                                       4

<PAGE>

          of Common Stock in such Business Combination shall be at least 
          equal to the highest amount determined under clauses (i) and (ii) 
          below: 

                  (i)  (if applicable) the highest per share price (including 
              any brokerage commissions, transfer taxes and soliciting 
              dealers' fees) paid by or on behalf of the Interested 
              Stockholder for any share of Common Stock in connection with 
              the acquisition by the Interested Stockholder of beneficial 
              ownership of shares of Common Stock within the two-year period 
              immediately prior to the first public announcement of the 
              proposed Business Combination (the "Announcement Date") or (y) 
              in the transaction in which it became an Interested 
              Stockholder, whichever is higher, in either case as adjusted 
              for any subsequent stock split, stock dividend, subdivision or 
              reclassification with respect to common stock; and

                  (ii)  the Fair Market Value per share of Common Stock on 
              the Announcement Date or on the date on which the Interested 
              Stockholder became an Interested Stockholder.

              b.   The aggregate amount of cash and the Fair Market Value, as 
          of the date of the consummation of the Business Combination, of 
          consideration other than cash to be received per share by holders 
          of shares of each class or series of outstanding Capital Stock, 
          other than Common Stock, shall be at least equal to the highest 
          amount determined under clauses (i), (ii) and (iii) below:

                  (i)  (if applicable) the highest per share price (including 
              any brokerage commissions, transfer taxes and soliciting 
              dealers' fees) paid by or on behalf of the Interested 
              Stockholder for any share of such class or series of Capital 
              Stock in connection with the acquisition by the Interested 
              Stockholder of beneficial ownership of shares of such class or 
              series of Capital Stock (x) within the two-year period 
              immediately prior to the Announcement Date or (y) in the 
              transaction in which it became an Interested Stockholder, 
              whichever is higher, in either case as adjusted for any 
              subsequent stock split, stock dividend, subdivision or 
              reclassification with respect to such class or series of 
              Capital Stock; 

                  (ii)  the Fair Market Value per share of such class or 
              series of Capital Stock on the Announcement Date or on the 
              Determination Date, whichever is higher, as adjusted for any 
              subsequent stock split, stock dividend, subdivision or 
              reclassification with respect to such class or series of 
              Capital Stock; and 

                  (iii)  (if applicable) the highest preferential amount per 
              share to which the holders of shares of such class or series of 
              Capital Stock would be entitled in the event of any voluntary 
              or involuntary liquidation, dissolution or winding up of the 
              affairs of the Corporation regardless of 


                                       5


<PAGE>

              whether the Business Combination to be consummated constitutes 
              such an event. 

              The provisions of this Paragraph 2(b) shall be required to be 
          met with respect to every class or series of outstanding Capital 
          Stock, whether or not the Interested Stockholder has previously 
          acquired beneficial ownership of any shares of a particular     
          class or series of Capital Stock. 

              c.  The consideration to be received by holders of a particular 
          class or series of outstanding Capital Stock shall be in cash or in 
          the same form as previously has been paid by or on behalf of the 
          Interested Stockholder in connection with its direct or indirect 
          acquisition of beneficial ownership of shares of such class or 
          series of Capital Stock.  If the consideration so paid for shares 
          of any class or series of Capital Stock varied as to form, the form 
          of consideration for such class or series of Capital Stock shall be 
          either cash or the form used to acquire beneficial ownership of the 
          largest number of shares of such class or series of Capital Stock 
          previously acquired by the Interested Stockholder. 

              d.  After the Determination Date and prior to the consummation 
          of such Business Combination:  (i) except as approved by a majority 
          of the Continuing Directors, there shall have been no failure to 
          declare and pay at the regular date therefor any full periodic 
          dividends (whether or not cumulative) payable in accordance with 
          the terms of any outstanding Capital Stock; (ii) there shall have 
          been no reduction in the annual rate of dividends paid on the 
          Common Stock (except as necessary to reflect any stock split, stock 
          dividend or subdivision of the Common Stock), except as approved by 
          a majority of the Continuing Directors; (iii) there shall have been 
          an increase in the annual rate of dividends paid on the Common 
          Stock as necessary to reflect any reclassification (including any 
          reverse stock split), recapitalization, reorganization or any 
          similar transaction that has the effect of reducing the number of 
          outstanding shares of Common Stock, unless the failure so to 
          increase such annual rate is approved by a majority of the 
          Continuing Directors; and (iv) such Interested Stockholders shall 
          not have become the beneficial owner of any additional shares of 
          Capital Stock except as part of the transaction that results in 
          such Interested Stockholder becoming an Interested Stockholder and 
          except in a transaction that, after giving effect thereto, would 
          not result in any increase in the Interested Stockholder's 
          percentage beneficial ownership of any class or series of Capital 
          Stock. 

              e.  A proxy or information statement describing the proposed 
          Business Combination and complying with the requirements of the 
          Securities Exchange Act of 1934 and the rules and regulations 
          thereunder (the "Act") (or any subsequent provisions replacing such 
          Act, rules or regulations) shall be mailed to all stockholders of 
          the Corporation at least 30 days prior to the consummation of such 
          Business Combination (whether or not such proxy or information 
          statement is required to be mailed pursuant to such Act or 
          subsequent provisions).  The 


                                       6

<PAGE>

          proxy or information statement shall contain on the first page 
          thereof, in a prominent place, such statement, if any, as to the 
          advisability (or inadvisability) of the Business Combination that 
          the Continuing Directors, or any of them, may choose to make and, 
          if deemed advisable by a majority of the Continuing Directors, the 
          opinion of an investment banking firm selected by a majority of the 
          Continuing Directors as to the fairness (or not) of the terms of 
          the Business Combination from a financial point of view to the 
          holders of the outstanding shares of Capital Stock other than the 
          Interested Stockholder and its Affiliates or Associates, such 
          investment banking firm to be paid a reasonable fee for its 
          services by the Corporation. 

              f.  Such Interested Stockholder shall not have made any major 
          change in the Corporation's business or equity capital structure 
          without the approval of a majority of the Continuing Directors. 

              g.  After the Determination Date, such Interested Stockholder 
          shall not have received the benefit, directly or indirectly (except 
          proportionately as a shareholder), of any loans, advances, 
          guarantees, pledges or other financial assistance or any tax 
          credits or other tax advantages provided by the Corporation, 
          whether in anticipation of or in connection with such Business 
          Combination or otherwise.

     C.   The following definitions shall apply with respect to this article
NINTH: 

          1.  The term "Business Combination" shall mean: 

              a.  any merger or consolidation of the Corporation or any 
          Subsidiary (as hereinafter defined) with (i) any Interested 
          Stockholder or (ii) any other company (whether or not itself an 
          Interested Stockholder) which is, or after such merger or 
          consolidation would be, an Affiliate or Associate of an Interested 
          Stockholder; or 

              b.  any sale, lease, exchange, mortgage, pledge, transfer or 
          other disposition or security arrangement, investment, loan, 
          advance, guarantee, agreement to purchase or sell, agreement to 
          pay, extension of credit, joint venture participation or other 
          arrangement (in one transaction or a series of transactions) with 
          or for the benefit of any Interested Stockholder or any Affiliate 
          or Associate of any Interested Stockholder involving any assets, 
          securities or commitments of the Corporation, any Subsidiary or any 
          Interested Stockholder or any Affiliate or Associate of any 
          Interested Stockholder which (except for any arrangement, whether 
          as employee or consultant or otherwise, other than as director, 
          pursuant to which any Interested Stockholder or any Affiliate or 
          Associate thereof shall, directly or indirectly, have any control 
          over or responsibility for the management of any aspect of the 
          business or affairs of the Corporation, with respect to which 


                                       7

<PAGE>

          arrangement the value test set forth below shall not apply), 
          together with all other such arrangements (including all 
          contemplated future events), has an aggregate Fair Market Value 
          and/or involves aggregate commitments of $100,000,000 or more or 
          constitutes more than 5 percent of the book value of the total 
          assets (in the case of transactions involving assets or commitments 
          other than capital stock) or 5 percent of the stockholders' equity 
          (in the case of transactions in capital stock) of the entity in 
          question (the "Substantial Part"), as reflected in the most recent 
          fiscal year-end consolidated balance sheet of such entity existing 
          at the time the stockholders of the Corporation would be required 
          to approve or authorize the Business Combination involving the 
          assets, securities and/or commitments constituting any Substantial 
          Part; provided, that if stockholders' equity is negative, the fair 
          market value of the outstanding Capital Stock at the date of such 
          balance sheet shall be used in lieu thereof in determining if a 
          transaction involves a Substantial Part; or

              c.  the adoption of any plan or proposal for the liquidation or 
          dissolution of the Corporation or for any amendment to the 
          Corporation's Bylaws; or 

              d.  any reclassification of securities (including any reverse 
          stock split), or recapitalization of the Corporation, or any merger 
          or consolidation of the Corporation with any of its Subsidiaries or 
          any other transaction (whether or not with or otherwise involving 
          an Interested Stockholder) that has the effect, directly or 
          indirectly, of increasing the proportionate share of any class or 
          series of Capital Stock, or any securities convertible into Capital 
          Stock or into equity securities of any Subsidiary, that is 
          beneficially owned by any Interested Stockholder or any affiliate 
          or Associate of any Interested Stockholder; or 

              e.  any agreement, contract or other arrangement providing for 
          any one or more of the actions specified in the foregoing clauses 
          (a) to (d). 

          2.  The term "Voting Stock" shall mean all Capital Stock which by 
     its terms may be voted on all matters submitted to stockholders of the 
     Corporation generally. 

          3.  The term "person" shall mean any individual, firm, company or 
     other entity and shall include any group comprised of any person and any 
     other person with whom such person or any Affiliate or Associate of such 
     person has any agreement, arrangement or understanding, directly or 
     indirectly, for the purpose of acquiring, holding, voting or disposing 
     of Capital Stock. 

          4.  The term "Interested Stockholder" shall mean any person (other 
     than (i) the Corporation or any Subsidiary, any profit-sharing, employee 
     stock ownership or other employee benefit plan of the Corporation or any 
     Subsidiary or any trustee of or fiduciary with respect to any such plan 
     when acting in such capacity and (ii) Doubletree Corporation, Promus 
     Hotel Corporation and any Subsidiary thereof) who (a) is, or has 
     announced or publicly disclosed a plan or intention to become, the 
     beneficial owner of 


                                       8

<PAGE>

     Voting Stock representing ten percent or more of the votes entitled to 
     be cast by the holders of all the then outstanding shares of Voting 
     Stock; or (b) is an Affiliate or Associate of the Corporation and at any 
     time within the two-year period immediately prior to the date in 
     question was the beneficial owner of Voting Stock representing ten 
     percent or more of the votes entitled to be cast by the holders of all 
     the then outstanding shares of Voting Stock; or (c) is an assignee of or 
     has otherwise succeeded to any Voting Stock which was at any time within 
     the two-year period immediately prior to the date in question 
     beneficially owned by an Interested Stockholder, if such assignment or 
     succession shall have occurred in the course of a transaction or series 
     of transactions not involving a public offering within the meaning of 
     the Securities Act of 1933, as amended. 

          5.  A person shall be a "beneficial owner" of any Capital Stock (a) 
     which such person or any of its Affiliates or Associates beneficially 
     owns, directly or indirectly; (b) which such person or any of its 
     Affiliates or Associates has, directly or indirectly, (i) the right to 
     acquire (whether such right is exercisable immediately or subject only 
     to the passage of time), pursuant to any agreement, arrangement or 
     understanding or upon the exercise of conversion rights, exchange 
     rights, warrants or options, or otherwise, or (ii) the right to vote 
     pursuant to any agreement, arrangement or understanding (but neither 
     such person nor any such Affiliate or Associate shall be deemed to be 
     the beneficial owner of any shares of Voting Stock solely by reason of a 
     revocable proxy granted for a particular meeting of stockholders, 
     pursuant to a public solicitation of proxies for such meeting, and with 
     respect to which shares neither such person nor any such Affiliate or 
     Associate is otherwise deemed the beneficial owner); or (c) which is 
     beneficially owned, directly or indirectly, by any other person with 
     which such person or any of its Affiliates or Associates has any 
     agreement, arrangement or understanding for the purpose of acquiring, 
     holding, voting (except to the extent contemplated by the parenthetical 
     clause in Section C.5(b)(ii)) or disposing of any shares of Capital 
     Stock; provided that:  (x) no director or officer of the Corporation 
     (nor any Affiliate or Associate of any such director or officer) shall, 
     solely by reason of any or all of such directors or officers acting in 
     their capacities as such, be deemed the "beneficial owner" of any shares 
     of Capital Stock that are beneficially owned by any other such director 
     or officer; (y) in the case of any employee stock ownership or similar 
     plan of the Corporation or of any Subsidiary in which the beneficiaries 
     thereof possess the right to vote the shares of Voting Stock held by 
     such plan, no such plan nor any trustee with respect thereto (nor any 
     Affiliate or Associate of such trustee), solely by reason of such 
     capacity of such trustee, shall be deemed the "beneficial owner" of the 
     shares of Voting Stock held under such plan; and (z) no person shall be 
     deemed the "beneficial owner" of any shares of Voting Stock held in any 
     voting trust, employee stock ownership plan or any similar plan or trust 
     if such person does not possess the right to vote such shares.  For the 
     purposes of determining whether a person is an Interested Stockholder 
     pursuant to Paragraph 4 of this section C, the number of shares of 
     Capital Stock deemed to be outstanding shall include shares deemed 
     beneficially owned by such person through application of this Paragraph 
     5 of Section C, but shall not include any other shares of Capital Stock 
     that may be issuable pursuant to any agreement, arrangement or 
     understanding, or upon exercise of conversion rights, warrants or 
     options, or otherwise.  Notwithstanding the foregoing, for purposes of 


                                       9

<PAGE>

     this Article NINTH, a person shall not be deemed a "beneficial owner" of 
     any Capital Stock which such person has the right to acquire upon 
     exercise of the Rights issued pursuant to the Parent Rights Agreement, 
     dated as of       , 1997, between the Corporation and        (including 
     any successor rights plan thereto, the "Rights Agreement"), if such person
     would not be deemed the beneficial owner of such Capital Stock under the
     terms of such Rights Agreement.

          6.  The terms "Affiliate" and "Associate" shall have the respective 
     meanings ascribed to such terms in Rule 12b-2 under the Act as in effect 
     on the date that this Article NINTH is approved by the Board (the term 
     "registrant" in said Rule 12b-2 meaning in this case the Corporation). 

          7.  The term "Subsidiary" means any company of which a majority of 
     any class of equity security is beneficially owned by the Corporation; 
     provided, however, that for the purposes of the definition of Interested 
     Stockholder set forth in Paragraph 4 of this Section C, the term 
     "Subsidiary" shall mean only a company of which a majority of each class 
     of equity security is beneficially owned by the Corporation. 

          8.  The term "Continuing Director" means any member of the Board of 
     Directors of the Corporation (the "Board of Directors"), while such 
     person is a member of the Board of Directors, who is not an Affiliate or 
     Associate or representative of the Interested Stockholder and was a 
     member of the Board of Directors prior to the time that the Interested 
     Stockholder became an Interested Stockholder, and any director who is 
     thereafter chosen to fill any vacancy or newly-created directorship on 
     the Board of Directors or who is elected and who, in either event, is 
     not an Affiliate or Associate or representative of the Interested 
     Stockholder and, in connection with such person's initial assumption of 
     office, is recommended for appointment or election by a majority of the 
     Continuing Directors then on the Board. 

          9.  The term "Fair Market Value" means (a) in the case of cash, the 
     amount of such cash; (b) in the case of stock the highest closing sales 
     price during the 30-day period immediately preceding the date in 
     question of a share of such stock on the Composite Tape for New York 
     Stock Exchange--Listed Stocks, or, if such stock is not quoted on the 
     Composite Tape, on the New York Stock Exchange, or, if such stock is not 
     listed on such Exchange, on the principal United States securities 
     exchange registered under the Act on which such stock is listed, or, if 
     such stock is not listed on any such exchange, the highest closing sales 
     price or bid quotation with respect to a share of such stock during the 
     30-day period preceding the date in question on the NASDAQ National 
     Market or any similar system then in use, or if no such quotations are 
     available, the fair market value on the date in question of a share of 
     such stock as determined by a majority of the Continuing Directors in 
     good faith; and (c) in the case of property other than cash or stock, 
     the fair market value of such property on the date in question as 
     determined in good faith by a majority of the Continuing Directors. 


                                       10

<PAGE>

         10.  In the event of any Business Combination in which the 
    Corporation survives, the phrase "consideration other than cash to be 
    received" as used in Paragraphs 2.a and 2.b of Section B of this Article 
    NINTH shall include the shares of Common Stock and/or the shares of any 
    other class or series of Capital Stock retained by the holders of such 
    shares. 

    D.  A majority of the Continuing Directors shall have the power and duty 
to determine for the purposes of this Article NINTH, on the basis of 
information known to them after reasonable inquiry, all questions arising 
under this Article NINTH including, without limitation, (a) whether a person 
is an Interested Stockholder, (b) the number of shares of Capital Stock or 
other securities beneficially owned by any person, (c) whether a person is an 
Affiliate or Associate of another, (d) whether a Proposed Action (as 
hereinafter defined) is with, or proposed by, or on behalf of, an Interested 
Stockholder or an Affiliate or Associate of an Interested Stockholder, (e) 
whether the assets that are the subject of any Business Combination have, or 
the consideration to be received for the issuance or transfer of securities 
by the Corporation or any Subsidiary in any Business Combination has, an 
aggregate Fair Market Value of $100,000,000 or more, (f) whether the assets 
or securities that are the subject of any Business Combination constitute a 
Substantial Part, and (g) whether the applicable conditions set forth in 
paragraph 2 of Section B of this Article NINTH have been met with respect to 
any Business Combination.  Any such determination made good faith shall be 
binding and conclusive on all parties.

    E.  Nothing contained in this Article NINTH shall be construed to relieve 
any Interested Stockholder from any fiduciary obligation imposed by law.

    F.  The fact that any Business combination complies with the provisions 
of Section B of this Article NINTH shall not be construed to impose any 
fiduciary duty, obligation or responsibility on the Board of Directors, or 
any member thereof, to approve such Business Combination or recommend its 
adoption or approval to the stockholders of the Corporation, nor shall such 
compliance limit, prohibit or otherwise restrict in any manner the Board of 
Directors, or any member thereof, with respect to evaluations of or actions 
and responses taken with respect to such Business Combination.

    G.  For the purpose of this Article NINTH, a Business Combination or any 
proposal to amend, repeal or adopt any provision of this Restated Certificate 
of Incorporation inconsistent with this Article NINTH (collectively, 
"Proposed Action") is presumed to have been proposed by, or on behalf of, an 
Interested Stockholder or a person who thereafter would become such if (1) 
after the Interested Stockholder became such, the Proposed Action is proposed 
following the election of any director of the Corporation who with respect to 
such Interested Stockholder, would not qualify to serve as a Continuing 
Director or (2) such Interested Stockholder, Affiliate, Associate or person 
votes for or consents to the adoption of any such Proposed Action, unless as 
to such Interested Stockholder, Affiliate, Associate or person, a majority of 
the Continuing Directors makes a good faith determination that such Proposed 
Action is not proposed by or on behalf of such Interested Stockholder, 
Affiliate, Associate or person, based on information known to them after 
reasonable inquiry.

                                      11

<PAGE>

    H.  Notwithstanding any other provisions of this Restated Certificate of 
Incorporation or the Bylaws of the Corporation (and notwithstanding the fact 
that a lesser percentage or separate class vote may be specified by law, this 
Restated Certificate of Incorporation or the Bylaws of the Corporation), or 
any proposal to amend, repeal or adopt any provision of this Restated 
Certificate of Incorporation inconsistent with this Article NINTH which is 
proposed by or on behalf of an Interested Stockholder or an Affiliate or 
Associate of an Interested Stockholder shall require the affirmative vote of 
(i) the holders of not less than 75% of the votes entitled to be cast by the 
holders of all the then outstanding shares of Voting Stock, voting together 
as a single class, and (ii) the holders of not less than a majority of the 
votes entitled to be cast by the holders of the then outstanding shares of 
Voting Stock, voting together as a single class, excluding Voting Stock 
beneficially owned by such Interested Stockholder, provided, however, that 
this Section H shall not apply to, and such vote shall not be required for, 
any amendment, repeal or adoption unanimously recommended by the Board of 
Directors if all of such directors are persons who would be eligible to serve 
as Continuing Directors within the meaning of Section C, Paragraph 8 of this 
Article NINTH.

      TENTH:  A.  Subject to Section C of this Article TENTH, the Corporation 
shall indemnify any person who was or is a party or is threatened to be made 
a party to any threatened, pending or completed action, suit or proceeding, 
whether civil, criminal, administrative or investigative (other than an 
action by or in the right of the Corporation) by reason of the fact that he 
is or was a director, officer, employee or agent of the Corporation, or is or 
was serving at the request of the Corporation as a director, officer, 
employee or agent of another corporation, partnership, joint venture, trust 
or other enterprise, against expenses (including attorneys' fees), judgments, 
fines and amounts paid in settlement actually and reasonably incurred by him 
in connection with such action, suit or proceeding if he acted in good faith 
and in a manner he reasonably believed to be in or not opposed to the best 
interests of the Corporation, and, with respect to any criminal action or 
proceeding, had no reasonable cause to believe his conduct was unlawful.  The 
termination of any action, suit or proceeding by judgment, order, settlement, 
conviction, or upon a plea of nolo contendere or its equivalent, shall not, 
of itself, create a presumption that the person did not act in good faith and 
in a manner which he reasonably believed to be in or not opposed to the best 
interest of the Corporation, or, with respect to any criminal action or 
proceeding, had reasonable cause to believe his conduct was unlawful. 

    B.  Subject to Section C of this Article TENTH, the Corporation shall 
indemnify any person who was or is a party or is threatened to be made a 
party to any threatened, pending or completed action or suit by or in the 
right of the Corporation to procure a judgment in its favor by reason of the 
fact that he is or was a director, officer, employee or agent of the 
Corporation, or is or was serving at the request of the Corporation as a 
director, officer, employee or agent of another corporation, partnership, 
joint venture, trust or other enterprise against expenses (including 
attorneys' fees) actually and reasonably incurred by him in connection with 
the defense or settlement of such action or suit if he acted in good faith 
and in a manner he reasonably believed to be in or not opposed to the best 
interest of the Corporation; except that no indemnification shall be made in 
respect of any claim, issue or matter as to which such person shall have been 
adjudged to be liable to the Corporation unless and only to the extent that 
the Court of Chancery or the court in which such action or suit was brought 
shall determine upon 

                                      12

<PAGE>

application that, despite the adjudication of liability but in view of all 
the circumstances of the case, such person is fairly and reasonably entitled 
to indemnity for such expenses which the Court of Chancery or such other 
court shall deem proper. 

    C.  Any indemnification under this Article TENTH (unless ordered by a 
court) shall be made by the Corporation only as authorized in the specific 
case upon a determination that indemnification of the director, officer, 
employee or agent is proper in the circumstances because he has met the 
applicable standard of conduct set forth in Section A or Section B of this 
Article TENTH, as the case may be.  Such determination shall be made (i) by a 
majority vote of directors who were not parties to such action, suit or 
proceeding, or (ii) if such a quorum is not obtainable, or, even if 
obtainable a quorum of disinterested directors so directs, by independent 
legal counsel in a written opinion, or (iii) by the stockholders.  To the 
extent, however, that a director, officer, employee or agent of the 
Corporation has been successful on the merits or otherwise in defense of any 
action, suit or proceeding described in Section A or Section B of this 
Article TENTH, or in defense of any claim, issue or matter therein, he shall 
be indemnified against expenses (including attorneys' fees) actually and 
reasonably incurred by him in connection therewith, without the necessity of 
authorization in the specific case. 

    D.  For purposes of any determination under Section C of this Article 
TENTH, a person shall be deemed to have acted in good faith and in a manner 
he reasonably believed to be in or not opposed to the best interest of the 
Corporation, and, with respect to any criminal action or proceeding, to have 
had no reasonable cause to believe his conduct was unlawful, if his action is 
based on the records or books of account of the Corporation or another 
enterprise, or on information supplied to him by the officers of the 
Corporation or another enterprise in the course of their duties, or on the 
advice of legal counsel for the Corporation or another enterprise or on 
information or records given or reports made to the Corporation or another 
enterprise by an independent certified public accountant or by an appraiser 
or other expert selected with reasonable care by the Corporation or another 
enterprise.  The term "another enterprise" as used in this Section D of 
Article TENTH shall mean any other corporation or any partnership, joint 
venture, trust or other enterprise of which such person is or was serving at 
the request of the Corporation as a director, officer, employee or agent.  
The provisions of this Section D shall not be deemed to be exclusive or to 
limit in any way the circumstances in which a person may be deemed to have 
met the applicable standard of conduct set forth in Sections A or B of this 
Article TENTH as the case may be. 

    E.  Notwithstanding any contrary determination in the specific case under 
Section C of this Article TENTH, and notwithstanding the absence of any 
determination thereunder, any director or officer may apply to any court of 
competent jurisdiction in the State of Delaware for indemnification to the 
extent otherwise permissible under Sections A and B of this Article TENTH.  
The basis of such indemnification by a court shall be a determination by such 
court that indemnification of the director or officer is proper in the 
circumstances because he has met the applicable standards of conduct set 
forth in Sections A or B of this Article TENTH, as the case may be.  Notice 
of any application for indemnification pursuant to this Section E of Article 
TENTH shall be given to the Corporation promptly upon the filing of such 
application. 

                                      13

<PAGE>

    F.  Expenses incurred in defending or investigating a threatened or 
pending action, suit or proceeding may be paid by the Corporation in advance 
of the final disposition of such action, suit or proceeding upon receipt of 
an undertaking by or on behalf of the director or officer to repay such 
amount if it shall ultimately be determined that he is not entitled to be 
indemnified by the Corporation as authorized in this Article TENTH. 

    G.  The indemnification and advancement of expenses provided by this 
Article TENTH shall not be deemed exclusive of any other rights to which any 
person seeking indemnification or advancement of expenses may be entitled 
under any Bylaw, agreement, contract, vote of stockholders or disinterested 
directors or pursuant to the direction (howsoever embodied) of any court of 
competent jurisdiction or otherwise, both as to action in his official 
capacity and as to action in another capacity while holding such office, it 
being the policy of the Corporation that indemnification of, and advancement 
of expenses to, the persons specified in Sections A and B of this Article 
TENTH shall be made to the fullest extent permitted by law.  The provisions 
of this Article TENTH shall not be deemed to preclude the indemnification of, 
and advancement of expenses to, any person who is not specified in Sections A 
or B of this Article TENTH but whom the Corporation has the power or 
obligation to indemnify under the provisions of the General Corporation Law 
of the State of Delaware, or otherwise.  The indemnification provided by this 
Article TENTH shall continue as to a person who has ceased to be a director 
or officer and shall inure to the benefit of the heirs, executors and 
administrators of such person. 

    H.  The Corporation may purchase and maintain insurance on behalf of any 
person who is or was a director or officer of the Corporation, or, while a 
director or officer of the Corporation, is or was serving at the request of 
the Corporation as a director, officer, employee or agent of another 
corporation, partnership, joint venture, trust or other enterprise against 
any liability asserted against him and incurred by him in any such capacity, 
or arising out of his status as such, whether or not the Corporation would 
have the power or the obligation to indemnify him against such liability 
under the provisions of this Article TENTH. 

    I.  For purposes of this Article TENTH, reference to "the Corporation" 
shall include, in addition to the resulting corporation, any constituent 
corporation (including any constituent of a constituent) absorbed in a 
consolidation or merger which, if its separate existence had continued, would 
have had power and authority to indemnify its directors or officers, so that 
any person who is or was a director or officer of such constituent 
corporation, or is or was serving at the request of such constituent 
corporation as a director, officer, employee or agent of another corporation, 
partnership, joint venture, trust or other enterprise, shall stand in the 
same position under the provisions of this Article TENTH with respect to the 
resulting or surviving corporation as he would have with respect to such 
constituent corporation if its separate existence had continued. 

      ELEVENTH:  Whenever a compromise or arrangement is proposed between 
this Corporation and its creditors or any class of them and/or between this 
Corporation and its stockholders or any class of them, any court of equitable 
jurisdiction within the State of Delaware may, on the application in a 
summary way of this Corporation or of any creditor or stockholder thereof or 
on the application of any receiver or receivers appointed for this 

                                      14

<PAGE>

Corporation under the provisions of Section 291 of the GCL or on the 
application of trustees in dissolution or of any receiver or receivers 
appointed for this Corporation under the provisions of Section 279 of the 
GCL, order a meeting of the creditors or class of creditors, and/or of the 
stockholders or class of stockholders of this Corporation, as the case may 
be, to be summoned in such manner as the said court directs.  If a majority 
in number representing three-fourths in value of the creditors or class of 
creditors, and/or of the stockholders or class of stockholders of this 
Corporation, as the case may be, agree to any compromise or arrangement and 
to any reorganization of this Corporation as a consequence of such compromise 
or arrangement, the said compromise or arrangement and the said 
reorganization shall, if sanctioned by the court to which the said 
application has been made, be binding on all the creditors or class of 
creditors, and/or on all the stockholders or class of stockholders, of this 
Corporation, as the case may be, and also on this Corporation. 

      TWELFTH:  The Corporation reserves the right to amend, alter, change or 
repeal any provision contained in this Restated Certificate of Incorporation, 
in the manner now or thereafter prescribed by statute, and all rights 
conferred upon stockholders herein are granted subject to this reservation. 

      THIRTEENTH:  No director of this Corporation shall be personally liable 
to the Corporation or its stockholders for monetary damages for breach of 
fiduciary duty as a director, except for liability (i) for any breach of the 
director's duty of loyalty to the Corporation or its stockholders, (ii) for 
acts or omissions not in good faith or which involve intentional misconduct 
or a knowing violation of the law, (iii) under Section 174 of the GCL, or 
(iv) for any transaction from which the director derived an improper personal 
benefit.  If the GCL is hereafter amended to authorize corporate action 
further limiting or eliminating the personal liability of directors, then the 
liability of each director of the Corporations shall be limited or eliminated 
to the fullest extent permitted by the GCL as so amended from time to time.

                                      15

<PAGE>

    IN WITNESS WHEREOF, said corporation has caused this Certificate to be 
signed by Raymond E. Schultz, its Chief Executive Officer and attested by 
Ralph B. Lake, its Secretary, this __ day of _________, 1997.

                                  By:

                                  ________________________
                                  Raymond E. Schultz
                                  Chief Executive Officer
ATTEST: 

________________________
Ralph B. Lake  
Secretary











                                      16

<PAGE>
                                                                   EXHIBIT 99.2

                                AMENDED AND RESTATED 

                                        BYLAWS

                                          OF

                               PROMUS HOTEL CORPORATION



                                      ARTICLE I.

                                       OFFICES

     Section 1.    REGISTERED OFFICE.  The registered office of Promus Hotel 
Corporation (the "Corporation") shall be at Corporation Service Company, 1013 
Centre Road, in the City of Wilmington, County of New Castle, State of 
Delaware.

     Section 2.    OTHER OFFICES.  The Corporation may also have offices at 
such other places both within and without the State of Delaware as the Board 
of Directors of the Corporation (the "Board of Directors") may from time to 
time determine.

                                      ARTICLE II.

                               MEETINGS OF STOCKHOLDERS

     Section 1.    PLACE OF MEETINGS.  Meetings of the stockholders for the 
election of directors or for any other purpose shall be held at such time and 
place, either within or without the State of Delaware as shall be designated 
from time to time by the Board of Directors and stated in the notice of the 
meeting or in a duly executed waiver of notice thereof.

     Section 2.    ANNUAL MEETINGS.  The annual meeting of stockholders shall 
be held on the last Wednesday in April in each year or on such other date and 
at such time as may be fixed by the Board of Directors and stated in the 
notice of the meeting, for the purpose of electing directors and for the 
transaction of only such other business as is properly brought before the 
meeting in accordance with these Bylaws.

     Written notice of an annual meeting stating the place, date and hour of 
the meeting, shall be given to each stockholder entitled to vote at such 
meeting not less than ten nor more than sixty days before the date of the 
meeting.

     To be properly brought before the annual meeting, business must be 
either (i) specified in the notice of annual meeting (or any supplement or 
amendment thereto) given by or at the direction of the Board of Directors, 
(ii) otherwise brought before the annual meeting by or at the direction of 
the Board of Directors, or (iii) otherwise properly brought before the annual 
meeting 


<PAGE>

by a stockholder.  In addition to any other applicable requirements, for 
business to be properly brought before an annual meeting by a stockholder, 
the stockholder must have given timely notice thereof in writing to the 
Secretary of the Corporation.  To be timely, a stockholder's notice must be 
delivered to or mailed and received at the principal executive offices of the 
Corporation not less than sixty (60) days nor more than ninety (90) days 
prior to the meeting; provided, however, that in the event that less than 
seventy (70) days notice or prior public disclosure of the date of the annual 
meeting is given or made to stockholders, notice by a stockholder, to be 
timely, must be received no later than the close of business on the tenth 
(10th) day following the day on which such notice of the date of the annual 
meeting was mailed or such public disclosure was made, whichever first 
occurs.  A stockholder's notice to the Secretary shall set forth (a) as to 
each matter the stockholder proposes to bring before the annual meeting (i) a 
brief description of the business desired to be brought before the annual 
meeting and the reasons for conducting such business at the annual meeting, 
and (ii) any material interest of the stockholder in such business, and (b) 
as to the stockholder giving the notice (i) the name and record address of 
the stockholder and (ii) the class, series and number of shares of capital 
stock of the Corporation which are beneficially owned by the stockholder.  
Notwithstanding anything in these Bylaws to the contrary, no business shall 
be conducted at the annual meeting except in accordance with the procedures 
set forth in this Article II, Section 2.  The officer of the Corporation 
presiding at an annual meeting shall, if the facts warrant, determine and 
declare to the annual meeting that business was not properly brought before 
the annual meeting in accordance with the provisions of this Article II, 
Section 2, and if such officer should so determine, such officer shall so 
declare to the annual meeting and any such business not properly brought 
before the meeting shall not be transacted.

     Section 3.    SPECIAL MEETINGS.  Unless otherwise prescribed by law or 
by the Restated Certificate of Incorporation of the Corporation (the 
"Certificate of Incorporation"), special meetings of stockholders, for any 
purpose or purposes, may only be called by a majority of the entire Board of 
Directors or by the Chairman of the Board and Chief Executive Officer or the 
President and Chief Operating Officer.

     Written notice of a special meeting stating the place, date and hour of 
the meeting, shall be given to each stockholder entitled to vote at such 
meeting not less than ten nor more than sixty days before the date of the 
meeting.

    Section 4.    QUORUM.  Except as otherwise provided by law or by the
Certificate of Incorporation, the holders of a majority of the capital stock
issued and outstanding and entitled to vote thereat, present in person or
represented by proxy, shall constitute a quorum at all meetings of the
stockholders for the transaction of business.  If, however, such quorum shall
not be present or represented at any meeting of the stockholders, the holders of
a majority of the votes entitled to be cast by the stockholders entitled to vote
thereat, present in person or represented by proxy may adjourn the meeting from
time to time, without notice other than announcement at the meeting, until a
quorum shall be present or represented by proxy.  At such adjourned meeting at
which a quorum shall be present or represented, any business may be transacted
which might have been transacted at the meeting as originally noticed.  If the
adjournment is for more than 

                                       2

<PAGE>

thirty days, or if after the adjournment a new record date is fixed for the 
adjourned meeting, a notice of the adjourned meeting shall be given to each 
stockholder entitled to vote at the meeting.

     Section 5.    VOTING.  Unless otherwise required by law, the Certificate 
of Incorporation, the rules or regulations of any stock exchange applicable 
to the Corporation or these Bylaws, any question (other than the election of 
directors) brought before any meeting of stockholders shall be decided by the 
vote of the holders of a majority of the stock represented and entitled to 
vote thereat.  At all meetings of stockholders for the election of directors, 
a plurality of the votes cast shall be sufficient to elect.  Each stockholder 
represented at a meeting of stockholders shall be entitled to cast one vote 
for each share of the capital stock entitled to vote thereat held by such 
stockholder, unless otherwise provided by the Certificate of Incorporation.  
Such votes may be cast in person or by proxy but no proxy shall be voted 
after three years from its date, unless such proxy provides for a longer 
period.  The Board of Directors, in its discretion, or the officer of the 
Corporation presiding at a meeting of stockholders, in his discretion, may 
require that any votes cast at such meeting shall be cast by written ballot.

     Section 6.    LIST OF STOCKHOLDERS ENTITLED TO VOTE.  The officer of the 
Corporation who has charge of the stock ledger of the Corporation shall 
prepare and make, at least ten days before every meeting of stockholders, a 
complete list of the stockholders entitled to vote at the meeting, arranged 
in alphabetical order, and showing the address of each stockholder and the 
number of shares registered in the name of each stockholder.  Such list shall 
be open to the examination of any stockholder, for any purpose germane to the 
meeting, during ordinary business hours, for a period of at least ten days 
prior to the meeting, either at a place within the city where the meeting is 
to be held, which place shall be specified in the notice of the meeting, or, 
if not so specified, at the place where the meeting is to be held.  The list 
shall also be produced and kept at the time and place of the meeting during 
the whole time thereof, and may be inspected by any stockholder of the 
Corporation who is present.

     Section 7.   STOCK LEDGER.  The stock ledger of the Corporation shall be 
the only evidence as to who are the stockholders entitled to examine the 
stock ledger, the list required by Section 6 of this Article II or the books 
of the Corporation, or to vote in person or by proxy at any meeting of 
stockholders.

                                     ARTICLE III.

                                      DIRECTORS

     Section 1.   NUMBER OF DIRECTORS; QUALIFICATIONS.  The total number of 
persons serving on the Board of Directors of the Corporation shall be 
fourteen, half of whom shall be Doubletree Directors and half of whom shall 
be Promus Directors (as such terms are defined below), all of which 
Doubletree Directors and Promus Directors shall be spread as evenly as 
possible among the Corporation's three classes of Directors.  Until December 
31, 2002, (a) the Board of Directors of the Corporation and each Committee of 
the Board of Directors of the Corporation as constituted following each 
election of Directors shall consist of an equal number of Doubletree 
Directors and Promus Directors, and (b) the size of the Board of Directors of 
the 

                                       3

<PAGE>

Corporation and each Committee of the Board of Directors of the Corporation 
shall not be increased unless such increase is approved by 75% of the 
members.  If, at any time during the period referenced in the immediately 
preceding sentence, the number of Doubletree Directors and Promus Directors 
serving, or that would be serving following the next stockholders' meeting at 
which Directors are to be elected, as Directors of the Corporation or as 
members of any Committee of the Board of Directors of the Corporation, would 
not be equal, then, subject to the fiduciary duties of the Directors of the 
Corporation, the Board of Directors and the Nominating Committee thereof 
shall nominate for election at the next stockholders' meeting at which 
Directors are to be elected, such person or persons as may be requested by 
the remaining Doubletree Directors (if the number of Doubletree Directors is, 
or would otherwise become, less than the number of Promus Directors) or by 
the remaining Promus Directors (if the number of Promus Directors is, or 
would otherwise become, less than the number of Doubletree Directors) to 
ensure that there shall be an equal number of Doubletree Directors and Promus 
Directors. The provisions of the preceding sentence shall not apply in 
respect of any stockholders' meeting which takes place after December 31, 
2002.  The term "Doubletree Director" means (i) any person who was selected 
by the Board of Directors of Doubletree Corporation, a Delaware corporation,  
to serve as a Director of the Corporation and (ii) any person who becomes a 
Director of the Corporation pursuant to the second preceding sentence and who 
is designated by the Doubletree Directors; and the term "Promus Director" 
means (i) any person who was selected by the Board of Directors of Promus 
Hotel Corporation, a Delaware corporation, to serve as a Director of the 
Corporation and (ii) any person who becomes a Director of the Corporation 
pursuant to the second preceding sentence and who is designated by the Promus 
Directors.  The provisions of this Article III, Section 1 may be amended only 
with the approval of 75% of the members of the Board of Directors of the 
Corporation.

     Section 2.   NOMINATION OF DIRECTORS.  Nominations of persons for 
election to the Board of Directors of the Corporation at a meeting of 
stockholders of the Corporation may be made at such meeting by or at the 
direction of the Board of Directors, by any committee or persons appointed by 
the Board of Directors or by any stockholder of the Corporation entitled to 
vote for the election of directors at the meeting who complies with the 
notice procedures set forth in this Article III, Section 2.  Such nominations 
by any stockholder shall be made pursuant to timely notice in writing to the 
Secretary of the Corporation.  To be timely, a stockholder's notice shall be 
delivered to or mailed and received at the principal executive offices of the 
Corporation not less than sixty (60) days nor more than ninety (90) days 
prior to the meeting; provided however, that in the event that less than 
seventy (70) days notice or prior public disclosure of the date of the 
meeting is given or made to stockholders, notice by the stockholder, to be 
timely, must be received no later than that the close of business on the 
tenth (10th) day following the day on which such notice of the date of the 
meeting was mailed or such public disclosure was made, whichever first 
occurs.  Such stockholder's notice to the Secretary shall set forth (i) as to 
each person whom the stockholder proposes to nominate for election or 
reelection as a director, (a) the name, age, business address and residence 
address of the person, (b) the principal occupation or employment of the 
person, (c) the class and number of shares of capital stock of the 
Corporation which are beneficially owned by the person, and (d) any other 
information relating to the person that is required to be disclosed in 
solicitations for proxies for election of directors pursuant to the Rules and 
Regulations of the Securities and Exchange Commission under Section 14 of the 

                                       4

<PAGE>

Securities Exchange Act of 1934, as amended; and (ii) as to the stockholder 
giving the notice (a) the name and record address of the stockholder and (b) 
the class and number of shares of capital stock of the Corporation which are 
beneficially owned by the stockholder.  The Corporation may require any 
proposed nominee to furnish such other information as may reasonably be 
required by the Corporation to determine the eligibility of such proposed 
nominee to serve as a director of the Corporation.  No person shall be 
eligible for election as a director of the Corporation unless nominated in 
accordance with the procedures set forth herein. The officer of the 
Corporation presiding at an annual meeting shall, if the facts warrant, 
determine and declare to the meeting that a nomination was not made in 
accordance with the foregoing procedure, and if he should so determine, he 
shall so declare to the meeting and the defective nomination shall be 
disregarded.

     Section 3.   MEETINGS.  The Board of Directors of the Corporation may 
hold meetings, both regular and special, either within or without the State 
of Delaware.  Regular meetings of the Board of Directors may be held without 
notice at such time and at such place as may from time to time be determined 
by the Board of Directors.  Special meetings of the Board of Directors may be 
called by the Chairman of the Board and Chief Executive Officer or the 
President and Chief Operating Officer or a majority of the entire Board of 
Directors.  Notice thereof stating the place, date and hour of the meeting 
shall be given to each director either by mail not less than forty-eight (48) 
hours before the date of the meeting, by telephone or telegram on twenty-four 
(24) hours notice, or on such shorter notice as the person or persons calling 
such meeting may deem necessary or appropriate in the circumstances.

     Section 4.   QUORUM.  Except as may be otherwise specifically provided 
by law, the Certificate of Incorporation or these Bylaws, at all meetings of 
the Board of Directors, a majority of the entire Board of Directors shall 
constitute a quorum for the transaction of business and the act of a majority 
of the directors present at any meeting at which there is a quorum shall be 
the act of the Board of Directors.  If a quorum shall not be present at any 
meeting of the Board of Directors, a majority of the directors present 
thereat may adjourn the meeting from time to time, without notice other than 
announcement at the meeting, until a quorum shall be present.

     Section 5.   ACTIONS OF BOARD OF DIRECTORS.  Unless otherwise provided 
by the Certificate of Incorporation or these Bylaws, any action required or 
permitted to be taken at any meeting of the Board of Directors or of any 
committee thereof may be taken without a meeting, if all the members of the 
Board of Directors or committee, as the case may be, consent thereto in 
writing, and the writing or writings are filed with the minutes of 
proceedings of the Board of Directors or committee.

     Section 6.   MEETINGS BY MEANS OF CONFERENCE TELEPHONE.  Unless 
otherwise provided by the Certificate of Incorporation or these Bylaws, 
members of the Board of Directors of the Corporation, or any committee 
designated by the Board of Directors, may participate in a meeting of the 
Board of Directors or such committee by means of a conference telephone or 
similar communications equipment by means of which all persons participating 
in the meeting can hear each other, and participation in a meeting pursuant 
to this Article III, Section 6 shall constitute presence in person at such 
meeting.

                                       5
<PAGE>

     Section 7.   COMMITTEES.  The Board of Directors may designate one or 
more committees, each committee to consist of one or more of the directors of 
the Corporation.  The Board of Directors may designate one or more directors 
as alternate members of any committee, who may replace any absent or 
disqualified member at any meeting of any such committee.  In the absence or 
disqualification of a member of a committee, and in the absence of a 
designation by the Board of Directors of an alternate member to replace the 
absent or disqualified member, the member or members thereof present at any 
meeting and not disqualified from voting, whether or not he or they 
constitute a quorum, may unanimously appoint another member of the Board of 
Directors to act at the meeting in the place of any absent or disqualified 
member.  Any committee, to the extent allowed by law and provided in the 
resolution establishing such committee, shall have and may exercise all the 
powers and authority of the Board of Directors in the management of the 
business and affairs of the Corporation.  Each committee shall keep regular 
minutes and report to the Board of Directors when required.

     Section 8.   EXECUTIVE COMMITTEE.  The Executive Committee of the 
Corporation shall have responsibility for developing the long-term strategic 
plans of the Corporation, making significant capital allocation decisions and 
such other duties and responsibilities as specified by the Board of 
Directors.  The Executive Committee shall also be required to oversee the 
implementation of the 100% guest satisfaction guarantee program at all of the 
Corporation's hotel properties.

     Section 9.   COMPENSATION.  The directors may be paid their expenses, if 
any, of attendance at each meeting of the Board of Directors and may be paid 
a fixed sum for attendance at each meeting of the Board of Directors or a 
stated salary as director.  No such payment shall preclude any director from 
serving the Corporation in any other capacity and receiving compensation 
therefor.  Members of special or standing committees may be allowed like 
compensation for attending committee meetings.

     Section 10.   INTERESTED DIRECTORS.  No contract or transaction between 
the Corporation and one or more of its directors or officers, or between the 
Corporation and any other corporation, partnership, association, or other 
organization in which one or more of its directors or officers are directors 
or officers, or have a financial interest, shall be void or voidable solely 
for this reason, or solely because the director or officer is present at or 
participates in the meeting of the Board of Directors or committee thereof 
which authorizes the contract or transaction, or solely because his or their 
votes are counted for such purpose if (i) the material facts as to his or 
their relationship or interest and as to the contract or transaction are 
disclosed or are known to the Board of Directors or the committee, and the 
Board of Directors or committee in good faith authorizes the contract or 
transaction by the affirmative votes of a majority of the disinterested 
directors, even though the disinterested directors be less than a quorum; or 
(ii) the material facts as to his or their relationship or interest and as to 
the contract or transaction are disclosed or are known to the shareholders 
entitled to vote thereon, and the contract or transaction is specifically 
approved in good faith by vote of the shareholders; or (iii) the contract or 
transaction is fair as to the Corporation as of the time it is authorized, 
approved or ratified, by the Board of Directors, a committee thereof or the 
shareholders.  Common or interested directors may be counted in 

                                       6

<PAGE>

determining the presence of a quorum at a meeting of the Board of Directors 
or of a committee which authorizes the contract or transaction.

                                      ARTICLE IV.

                                       OFFICERS

     Section 1.   GENERAL.  The officers of the Corporation shall be elected 
by the Board of Directors and shall consist of:  a Chairman of the Board and 
Chief Executive Officer; a President and Chief Operating Officer; a 
Secretary; and a Treasurer.  The Board of Directors, in its discretion, may 
also elect one or more Executive Vice Presidents, Senior Vice Presidents, 
Vice Presidents, Assistant Secretaries, Assistant Treasurers, a Controller 
and such other officers as in the judgment of the Board of Directors may be 
necessary or desirable.  Any number of offices may be held by the same 
person, unless otherwise prohibited by law, the Certificate of Incorporation 
or these Bylaws. The officers of the Corporation need not be stockholders of 
the Corporation nor, except in the case of the Chairman of the Board of 
Directors, need such officers be directors of the Corporation.

     Section 2.   ELECTION.  The Board of Directors at its first meeting held 
after each annual meeting of stockholders shall elect the officers of the 
Corporation who shall hold their offices for such terms and shall exercise 
such powers and perform such duties as shall be determined from time to time 
by the Board of Directors; and all officers of the Corporation shall hold 
office until their successors are chosen and qualified, or until their 
earlier resignation or removal.  Except as otherwise provided in this Article 
IV, any officer elected by the Board of Directors may be removed at any time 
by the affirmative vote of a majority of the Board of Directors.  Any vacancy 
occurring in any office of the Corporation shall be filled by the Board of 
Directors.  The salaries of all officers who are directors of the Corporation 
shall be fixed by the Board of Directors.

     Section 3.   VOTING SECURITIES OWNED BY THE CORPORATION.  Powers of 
attorney, proxies, waivers of notice of meeting, consents and other 
instruments relating to securities owned by the Corporation may be executed 
in the name of and on behalf of the Corporation by the Chairman of the Board 
and Chief Executive Officer, the President and Chief Operating Officer or any 
Vice President, and any such officer may, in the name and on behalf of the 
Corporation, take all such action as any such officer may deem advisable to 
vote in person or by proxy at any meeting of security holders of any 
corporation in which the Corporation may own securities and at any such 
meeting shall possess and may exercise any and all rights and power incident 
to the ownership of such securities and which, as the owner thereof, the 
Corporation might have exercised and possessed if present.  The Board of 
Directors may, by resolution, from time to time confer like powers upon any 
other person or persons.

     Section 4.   CHAIRMAN OF THE BOARD AND CHIEF EXECUTIVE OFFICER.  The 
Chairman of the Board shall be a member of the Board of Directors and an 
officer of the Corporation, and, if present, shall preside at all meetings of 
the stockholders and of the Board of Directors.  The Chairman of the Board 
shall be the Chief Executive Officer of the Corporation and shall 

                                       7

<PAGE>

supervise, coordinate and manage the Corporation's business and activities 
and supervise, coordinate and manage its operating expenses and capital 
allocation, shall have general authority to exercise all the powers necessary 
for the Chief Executive Officer of the Corporation and shall perform such 
other duties and have such other powers as may be prescribed by the Board of 
Directors or these Amended and Restated Bylaws, all in accordance with basic 
policies as established by and subject to the oversight of the Board of 
Directors.  Raymond E. Schultz shall serve as Chairman of the Board and Chief 
Executive Officer of the Corporation until his retirement no later than 
December 31, 1999.  Richard M. Kelleher shall succeed Mr. Schultz as Chairman 
of the Board and Chief Executive Officer no later than January 1, 2000, 
unless 75% or more of the members of the Board of Directors vote otherwise.

     Section 5.   PRESIDENT AND CHIEF OPERATING OFFICER.  The President and 
Chief Operating Officer shall supervise, coordinate and manage the 
Corporation's business and activities and supervise, coordinate and manage 
its operating expenses and capital allocation, shall have general authority 
to exercise all the powers necessary for the President and Chief Operating 
Officer of the Corporation and shall perform such other duties and have such 
other powers as may be prescribed by the Board of Directors or these Amended 
and Restated Bylaws, all in accordance with basic policies as established by 
and subject to the oversight of the Board of Directors and the Chairman of 
the Board and Chief Executive Officer.  In the absence or disability of the 
Chairman of the Board and Chief Executive Officer, the duties of the Chairman 
of the Board shall be performed and the Chairman of the Board's authority may 
be exercised by the President and Chief Operating Officer and, in the event 
the President and Chief Operating Officer is absent or disabled, such duties 
shall be performed and such authority may be exercised by a director 
designated for such purpose by the Board of Directors.  Unless 75% or more of 
the members of the Board of Directors vote otherwise, Richard M. Keller shall 
continue to serve as President and Chief Operating Officer until Raymond E. 
Schultz retires as Chairman of the Board and Chief Executive Officer.

     Section 6.   VICE PRESIDENTS.  At the request of the President and Chief 
Operating Officer or in the absence of both the Chairman of the Board and 
Chief Executive Officer and the President and Chief Operating Officer, or in 
the event of their inability or refusal to act , the Vice President or the 
Vice Presidents if there is more than one (in the order designated by the 
Board of Directors) shall perform the duties of the Chairman of the Board and 
Chief Executive Officer and/or the President and Chief Operating Officer, and 
when so acting, shall have all the powers of and be subject to all the 
restrictions upon such offices (other than as Chairman of the Board).  Each 
Vice President shall perform such other duties and have such other powers as 
the Board of Directors from time to time may prescribe.  If there be no Vice 
President, the Board of Directors shall designate the officer of the 
Corporation who, in the absence of the Chairman of the Board and Chief 
Executive Officer and the President and Chief Operating Officer or in the 
event of the inability or refusal of such officers to act, shall perform the 
duties of such offices (other than as Chairman of the Board), and when so 
acting, shall have all the powers of and be subject to all the restrictions 
upon such offices (other than as Chairman of the Board).

     Section 7.   SECRETARY.  The Secretary shall attend all meetings of the 
Board of Directors and all meetings of stockholders and record all the 
proceedings thereat in a book or 

                                       8

<PAGE>

books to be kept for that purpose; the Secretary shall also perform like 
duties for the standing committees when required.  The Secretary shall give, 
or cause to be given, notice of all meetings of the stockholders and special 
meetings of the Board of Directors, and shall perform such other duties as 
may be prescribed by the Board of Directors, the Chairman of the Board and 
Chief Executive Officer or the President and Chief Operating Officer, under 
whose supervision the Secretary shall be.  If the Secretary shall be unable 
or shall refuse to cause to be given notice of all meetings of the 
stockholders and special meetings of the Board of Directors, and if there be 
no Assistant Secretary, then the Board of Directors, the Chairman of the 
Board and Chief Executive Officer or the President and Chief Operating 
Officer may choose another officer to cause such notice to be given.  The 
Secretary shall have custody of the seal of the Corporation and the Secretary 
or any Assistant Secretary, if there be one, shall have authority to affix 
the same to any instrument requiring it and when so affixed, it may be 
attested by the signature of the Secretary or by the signature of any such 
Assistant Secretary.  The Board of Directors may give general authority to 
any other officer to affix the seal of the Corporation and to attest the 
affixing by his signature.  The Secretary shall see that all books, reports, 
statements, certificates and other documents and records required by law to 
be kept or filed are properly kept or filed, as the case may be.

     Section 8.   TREASURER.  The Treasurer shall have the custody of the 
corporate funds and securities and shall keep full and accurate accounts of 
receipts and disbursements in books belonging to the Corporation and shall 
deposit all moneys and other valuable effects in the name and to the credit 
of the Corporation in such depositories as may be designated by the Board of 
Directors.  The Treasurer shall disburse the funds of the Corporation as may 
be ordered by the Board of Directors, taking proper vouchers for such 
disbursements, and shall render to the President and the Board of Directors, 
at its regular meetings, or when the Board of Directors so requires, an 
account of all his transactions as Treasurer and of the financial condition 
of the Corporation.  If required by the Board of Directors, the Treasurer 
shall give the Corporation a bond in such sum and with such surety or 
sureties as shall be satisfactory to the Board of Directors for the faithful 
performance of the duties of his office and for the restoration to the 
Corporation, in case of his death, resignation, retirement or removal from 
office, of all books, papers, vouchers, money and other property of whatever 
kind in his possession or under his control belonging to the Corporation.

     Section 9.   ASSISTANT SECRETARIES.  Except as may be otherwise provided 
in these Bylaws, Assistant Secretaries, if there be any, shall perform such 
duties and have such powers as from time to time may be assigned to them by 
the Board of Directors, the Chairman of the Board and Chief Executive 
Officer, the President and Chief Operating Officer, any Vice President, if 
there be one, or the Secretary, and in the absence of the Secretary or in the 
event of his disability or refusal to act, shall perform the duties of the 
Secretary, and when so acting, shall have all the powers of and be subject to 
all the restrictions upon the Secretary.

     Section 10.   ASSISTANT TREASURERS.  Assistant Treasurers, if there be 
any, shall perform such duties and have such powers as from time to time may 
be assigned to them by the Board of Directors, the Chairman of the Board and 
Chief Executive Officer, the President and Chief Operating Officer, any Vice 
President, if there be one, or the Treasurer, and in the absence of the 

                                       9

<PAGE>

Treasurer or in the event of his disability or refusal to act, shall perform 
the duties of the Treasurer, and when so acting, shall have all the powers of 
and be subject to all the restrictions upon the Treasurer.  If required by 
the Board of Directors, an Assistant Treasurer shall give the Corporation a 
bond in such sum and with such surety or sureties as shall be satisfactory to 
the Board of Directors for the faithful performance of the duties of his 
office and for the restoration to the Corporation, in case of his death, 
resignation, retirement or removal from office, of all books, papers, 
vouchers, money and other property of whatever kind in his possession or 
under his control belonging to the Corporation.

     Section 11.   CONTROLLER.  The Controller shall establish and maintain 
the accounting records of the Corporation in accordance with generally 
accepted accounting principles applied on a consistent basis, maintain proper 
internal control of the assets of the Corporation and shall perform such 
other duties as the Board of Directors, the Chairman of the Board and Chief 
Executive Officer, the President and Chief Operating Officer or any Vice 
President of the Corporation may prescribe.

     Section 12.   OTHER OFFICERS.  Such other officers as the Board of 
Directors may choose shall perform such duties and have such powers as from 
time to time may be assigned to them by the Board of Directors.  The Board of 
Directors may delegate to any other officer of the Corporation the power to 
choose such other officers and to prescribe their respective duties and 
powers.  Initially and until such time as Richard M. Kelleher succeeds 
Raymond E. Schultz as Chairman of the Board and Chief Executive Officers of 
the Corporation, William L. Perocchi shall serve as Executive Vice President 
and Chief Financial Officer of the Corporation, unless 75% or more of the 
members of the Board of Directors vote otherwise.

                                      ARTICLE V.

                                        STOCK

     Section 1.   FORM OF CERTIFICATES.  Every holder of stock in the 
Corporation shall be entitled to have a certificate signed, in the name of 
the Corporation (i) by the Chairman of the Board and Chief Executive Officer, 
the President and Chief Operating Officer or a Vice President and (ii) by the 
Treasurer or an Assistant Treasurer, or the Secretary or an Assistant 
Secretary of the Corporation, certifying the number of shares owned by him in 
the Corporation.

     Section 2.   SIGNATURES.  Any or all of the signatures on the 
certificate may be a facsimile, including, but not limited to, signatures of 
officers of the Corporation and countersignatures of a transfer agent or 
registrar.  In case any officer, transfer agent or registrar who has signed 
or whose facsimile signature has been placed upon a certificate shall have 
ceased to be such officer, transfer agent or registrar before such 
certificate is issued, it may be issued by the Corporation with the same 
effect as if he were such officer, transfer agent or registrar at the date of 
issue.

     Section 3.   LOST CERTIFICATES.  The Board of Directors may direct a new 
certificate to be issued in place of any certificate theretofore issued by 
the Corporation alleged to have been lost, stolen or destroyed, upon the 
making of an affidavit of that fact by the person claiming the 

                                      10

<PAGE>

certificate of stock to be lost, stolen or destroyed.  When authorizing such 
issue of a new certificate, the Board of Directors may, in its discretion and 
as a condition precedent to the issuance thereof, require the owner of such 
lost, stolen or destroyed certificate, or his legal representative, to 
advertise the same in such manner as the Board of Directors shall require 
and/or to give the Corporation a bond in such sum as it may direct as 
indemnity against any claim that may be made against the Corporation with 
respect to the certificate alleged to have been lost, stolen or destroyed.

     Section 4.   TRANSFERS.  Stock of the Corporation shall be transferable 
in the manner prescribed by law and in these Bylaws.  Transfers of stock 
shall be made on the books of the Corporation only by the person named in the 
certificate or by his attorney lawfully constituted in writing and upon the 
surrender of the certificate therefor, which shall be canceled before a new 
certificate shall be issued.

                                      11


<PAGE>

                         FOR IMMEDIATE RELEASE

Contact:  For Doubletree:                  For Promus:
          William L. Perocchi, CFO         John C. Hawkins, Corporate 
          Doubletree Corporation             Communications
          (602)220-6810                    Promus Hotel Corporation
          Ruth Pachman/Michael Freitag     (901)374-5529
          Kekst and Company                Gregg A. Swearingen, Investor
          (212)521-4800                      Relations
                                           Promus Hotel Corporation
                                           (901)374-5468

                                       
                                       
             DOUBLETREE CORPORATION AND PROMUS HOTEL CORPORATION
                SIGN $4.7 BILLION DEFINITIVE MERGER AGREEMENT
                                       
    PHOENIX, AZ AND MEMPHIS, TN, SEPTEMBER 2, 1997 - Doubletree Corporation 
(NASDAQ:  TREE) and Promus Hotel Corporation (NYSE: PRH) today announced the 
execution of a definitive merger agreement, creating one of the world's 
largest hotel companies with a portfolio of fast-growing upscale and 
mid-priced brands including Doubletree Hotels, Embassy Suites, Doubletree 
Guest Suites, Homewood Suites, Club Hotels by Doubletree, Hampton Inn, 
Hampton Inn & Suites, and Red Lion.  This stock-for-stock transaction, valued 
at approximately $4.7 billion, is a merger of equals, combining Doubletree's 
strength in hotel management with Promus' strength in franchising and 
building brands.
     With approximately $5 billion in annual system-wide revenues under 
management contract for franchise agreement, the combined company will be the 
lodging industry's third largest revenue producer. As of June 30, the new 
company had 1,136 hotels, approximately 172,000 rooms, and more than 40,000 
employees in all regions of the United States and its major markets, as well 
as selected locations in Latin America and Asia.
    The terms of the agreement call for the two companies to be merged into 
subsidiaries of a new holding company to be named Promus Hotel Corporation. 
Doubletree shareholders will receive one share in the new company for each of 
their shares in Doubletree. Promus shareholders will receive 0.925 shares in 
the new company for each of their shares in Promus. The transaction is 
intended to be accounted for as a pooling-of-interests and is expected to be 
tax-free. The merger is 

<PAGE>

expected to be accretive to earnings per share in the first full year, 
excluding costs related to the transaction. The shares of the new company are 
expected to be listed on the New York Stock Exchange.
     The companies have agreed that:
     -  Promus' President and Chief Executive Officer, Raymond E. Schultz, will
        serve as Chairman and Chief Executive Officer of the new company, and 
        as a member of the Board's Executive Committee.
     -  Doubletree's President and Chief Executive Officer, Richard M. Kelleher,
        will serve as President and Chief Operating Officer following the 
        merger, and will succeed Mr. Schultz as Chief Executive Officer upon his
        retirement. He will also be an ex-officio member of the Board's 
        Executive Committee.
     -  The key management team will consist of top managers of both Doubletree
        and Promus, including William L. Perocchi, currently Executive Vice
        President and Chief Financial Officer of Doubletree, as Executive Vice 
        President and Chief Financial Officer, and Thomas L. Keltner, currently
        Executive Vice President and Chief Development Officer of Promus, as
        Executive Vice President and Chief Development Officer.
     -  The new company will be governed by a 14-member Board of Directors, with
        seven directors designated by each company.  The Board will include 
        Richard J. Ferris and Peter V. Ueberroth, Doubletree Co-Chairmen, and 
        Michael D. Rose, Promus Chairman, who will serve as members of the 
        Board's Executive Committee.
     -  Each company has granted the other an option to acquire 19.9 percent of
        its common stock under certain conditions.
     Doubletree also announced that it has adopted a Stockholder Rights Plan, 
the details of which will be released separately.
     Approximately 40% of Doubletree's shareholders, including, among others, 
General Electric Pension Trust and Kohlberg Kravis Roberts & Co., have 
indicated they intend to vote in favor of the merger. GE and KKR will 
continue to be represented on the Board of the new company.

<PAGE>

     Raymond E. Schultz, Promus President and Chief Executive Officer, said: 
"This transaction is truly a merger of equals. The combined company will 
greatly benefit from the complementary strengths of each partner. Doubletree 
has grown rapidly through acquisitions and an aggressive conversion strategy. 
It has an outstanding record and reputation as a quality operator and brand 
marketer of full service hotels. Promus has grown through franchising and 
new hotel development. We have grown our proprietary brands primarily on a 
one-at-a-time basis with emphasis on product quality and consistency and our 
unique 100% satisfaction guaranteed service culture, which will be extended 
to all Doubletree's brands."
     Mr. Schultz added, "This merger is a "defining moment" for Promus. We 
have achieved a significant presence in the upscale suites and extended-stay 
markets, and are the industry leader in the mid-priced limited service 
segment. In joining with a quality upscale full-service brand in Doubletree 
Hotels, as well as its other brands, the combined company will be able to 
offer a full range of quality accommodations to meet the needs of business 
and leisure travelers in markets throughout the United States. Our ability to 
cross-sell and cross-market our brands will be a key driver of our future 
growth. We will also be able to offer to franchisees, developers and 
investors an even more complete line of hotel development opportunities in 
virtually every important segment of the lodging business.
     "The combination of two of the strongest and most successful management 
teams in our industry will provide the depth to continue to grow rapidly and 
expand to new areas. Rick Kelleher and I worked together for many years, so I 
know we share the same values and commitment to product quality, customer 
service and creating shareholder value. The cultures of our companies are 
remarkably similar and that should make the transition more seamless. We will 
immediately form transition task forces so that we will hit the ground 
running," Mr. Schultz continued.
     Richard M. Kelleher, President and Chief Executive Officer of Doubletree 
Corporation, said, "The merger of Doubletree and Promus is a natural marriage 
of two strong institutions with a common heritage and a focus on growth. 
Doubletree traces its roots to a company that was one of the original 
franchisees of Embassy Suites. Today, Embassy Suites is the clear market 
leader in 

<PAGE>

the upscale all-suites segment and accounts for more than half of Promus' 
operating profit. The blending of Embassy Suites and Doubletree Guest Suites 
will give the new company an even stronger base on which to build market 
share."
     "There are also tremendous opportunities for growth in the extended-stay 
market, with the upscale Homewood Suites brand complementing Doubletree's 
investment in the mid-market Candlewood Hotels brand. Likewise, our smaller 
Club Hotels by Doubletree and Red Lion brands will benefit from Promus' 
strength as a franchisor and builder of brands. We are also excited about 
having Hampton Inn, one of this decade's fastest growing mid-market brands, 
included in our combined portfolio."
     Mr. Kelleher added, "At a time when the lodging industry is rapidly 
consolidating, the merger creates a company with significant free cash flow, 
one of the strongest balance sheets in our industry and access to sources of 
lower-cost capital than most of our competitors. We are very well positioned 
to leverage these financial strengths to accelerate our growth in the future."
     Both companies expect to realize substantial synergies and cost savings 
from the merger. They will be able to combine their respective reservation 
systems, information system development and maintenance, purchasing 
functions, accounting, payroll, and many other corporate support functions to
provide substantial efficiencies. The companies said that their preliminary 
estimated cost savings and synergies should yield approximately $15 to $20 
million annually. Both companies have preferred vendor programs which provide 
growing revenue streams that will benefit from the combined larger room count.
     Consummation of this transaction is subject to customary conditions, 
including regulatory approvals and approval of the merger by shareholders of 
each company. It is anticipated that this transaction will close prior to 
1997 year-end.
     Morgan Stanley & Co. served as financial adviser to Doubletree and BT 
Wolfensohn served as financial adviser to Promus.

<PAGE>

     Doubletree Corporation is a leading hotel management company and is the 
exclusive franchisor of Doubletree Hotels, Doubletree Guest Suites, Club 
Hotels by Doubletree and Red Lion hotel brands.
     Promus Hotel Corporation is one of the world's premier lodging companies 
and the franchisor and operator of the Embassy Suites, Hampton Inn, Hampton 
Inn & Suites, Homewood Suites, Embassy Vacation Resort and Hampton Vacation 
Resort brands. Based in Memphis, Tenn., the company currently serves guests 
with an unconditional 100% Satisfaction Guarantee in more than 900 hotels and 
115,000 rooms throughout the United States, Canada, Mexico, Latin America and 
Asia. A company overview and financial highlights can be found on the 
internet by accessing http://www.promus-hotel.com.
     Safe Harbor Statement Under the Private Securities Litigation Reform Act 
of 1995: The statements contained in this release which are not historical 
facts, such as those concerning future financial performance and growth, are 
forward looking statements that are subject to change based on various 
factors which may be beyond Doubletree's and Promus' control. Accordingly, 
the future performance and financial results of the new company may differ 
materially from those expressed or implied in any such forward looking 
statements. Such factors include, but are not limited to, those described in 
Doubletree's and Promus' filings with the Securities and Exchange Commission, 
as well as various factors related to the transaction described in this 
release, including the costs of integrating their business and the 
realization of synergies anticipated with respect to the transaction. 

                  (Fact Sheet Attached)

<PAGE>

                        DOUBLETREE AND PROMUS MERGER
                                  FACT SHEET
                                       
TRANSACTION
- -  Merger of Doubletree and Promus to create one of the world's largest 
   hotel companies.
- -  Tax-free exchange of stock into a new issue of a new company to be called
   Promus Hotel Corp.
- -  Each share of Doubletree will be converted into one share of new Promus.
- -  Each share of Promus will be converted into 0.925 shares of new Promus.
- -  The transaction is intended to be accounted for as a pooling of interests,
   with no goodwill created.

STRATEGIC RATIONALE
- -  Creates a powerful presence in the U.S. hotel market with a portfolio of 
   brands including:
   -Doubletree Hotels
   -Embassy Suites
   -Embassy Vacation Resort
   -Doubletree Guest Suites
   -Homewood Suites
   -Club Hotels by Doubletree
   -Hampton Inn
   -Hampton Inn & Suites
   -Hampton Vacation Resort
   -Red Lion
- -  Highlights of new Promus Hotel Corp.:
   -1,136 hotels (as of June 30, 1997)
   -172,000 rooms (as of June 30, 1997)
   -#3 in total system-wide revenues under management or franchise
   -#4 in market capitalization
   -#5 in number of hotels
   -#5 in number of rooms
- -  Strong balance sheet, increased size and complementary hotel brands create 
   platform for further expansion
   -Full-service segment and international market expansion opportunities
   -Further development 
- -  Compatible organizations
   -Complementary lines of business (franchising and management operations)
   -History of delivering shareholder value
   -#1 in customer satisfaction index
   -Proven ability to grow organically and through acquisitions
   -Proven ability to integrate mergers and acquisitions

<PAGE>


                        DOUBLETREE AND PROMUS MERGER
                            FACT SHEET CONTINUED
                                       
POTENTIAL MERGER BENEFITS
SHAREHOLDERS
- -  Promus' franchise and development expertise combined with Doubletree's 
   management expertise provides significant opportunities for growth.
- -  Potential for savings in corporate overhead, information technology,
   purchasing, reservation systems and financing costs.
- -  Cross-selling opportunities
- -  Enhances new and existing developer, franchisee and investor relationships
- -  Increased financial strength
   -Larger, more diversified asset base
   -Maintains low debt level
- -  Strong cash flow from business and increase size enhance prospects for 
   continued growth
- -  Likely reduction in cost of capital

CUSTOMERS
- -  Ability to leverage a larger, more diversified portfolio of brand names
- -  Continued focus on providing quality service across entire range of hotel 
   brands
- -  Ability to leverage Doubletree brands through Promus franchise network

EMPLOYEES
- -  New company will be one of the strongest and best positioned domestic U.S. 
   hotel companies
- -  Ability to participate both financially and professionally in growth 
   companies

PRO FORMA FINANCIAL PROFILE
Annual System-wide Revenues under Management or Franchise       $5.0 billion
1996 Revenues                                                   $937 million
1996 EBITDA                                                     $322 million
1996 Net Income                                                 $106 million
Book Value (as of June 30, 1997)                                $1.1 billion
Assets (as of June 30, 1997)                                    $2.4 billion
Debt to Capital (as of June 30, 1997)                           40%
Shares Outstanding (as of August 29, 1997)                      86 million
Market Capitalization (as of August 29, 1997)                   $4.0 billion
Enterprise Value (as of August 29, 1997)                        $4.7 billion

ORGANIZATION
Key Officers:
     Chairman & CEO               Raymond E. Schultz
     President & COO              Richard M.  Kelleher
     Chief Financial Officer      William L. Perocchi
     Chief Development Officer    Thomas L. Keltner

Board of Directors                14 Members (7 each from Promus and Doubletree)
Employees                         Approximately 40,000
State of Incorporation            Delaware

<PAGE>

                          DOUBLETREE AND PROMUS MERGER
                               FACT SHEET CONTINUED
                                       
                                       
HOTEL PORTFOLIO (AS OF 6/30/07)
BRAND                        HOTELS    ROOMS   REVPAR
Doubletree Guest Suites        42      8,987   $95.34
Embassy Suites                136     32,810    86.97
Homewood Suites                43      4,439    71.84
Doubletree Hotels             101     30,368    70.54
Red Lion                       16      2,902    59.29
Club Hotels                    19      3,977    51.77
Hampton Inn & Suites           23      2,500    48.75
Hampton Inn                   679     73,326    46.00
Non-Branded                    77     12,344    58.38
                            ------   -------
TOTAL                       1,136    171,653

OWNERSHIP                    HOTELS    ROOMS
Owned                           45     8,105
Joint Venture                   26     7,264
Leased                          86   14,448
Managed                        164    41,920
Franchise                      815    99,916
                            ------   -------
TOTAL                        1,136   171,653

OTHER INFORMATION
Form of Transaction           Merger of equals, stock-for-stock exchange 
Subject to                    Approval of Promus and Doubletree hareholders; 
                              approximately 40% of Doubletree shareholders 
                              have agreed to vote in favor of the merger
                              Hart-Scott-Rodino review
Expected Closing              By year-end 1997


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