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Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids
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Document Number
US Patent 4054579
Issued Date
October 18, 1977
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Inventors
Nelson; Peter H.
(Los Altos, CA)
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Untch; Karl G.
(Los Altos, CA)
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Dunn; James P.
(Palo Alto, CA)
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Abstract
2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids, and esters and salts thereof, are prepared by solvolysis of nitrile or amide intermediates, or of ketal-protected nitrile, amide, acid, ester or salt intermediates.
Patent Report
Tags:
intermediates
process
preparation
hdibenzoadcycloheptenonylacetic
propionic
butyric
acids
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Description:
Amusing 0%
Clever 0%
Complex 0%
Efficient 0%
Historic 0%
Important 0%
Innovative 0%
Interesting 0%
Practical 0%
Simple 0%
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Number of Claims:
3
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Owner
Syntex (U.S.A.) Inc.
(Palo Alto, CA)
Published
October 18, 1977
Application Number
05/697,910
Filed
June 21, 1976
US Classification
549/339
549/340 568/319 568/326
Int'l Classification
C07C 51/06 (20060101) C07C 51/347 (20060101) C07C 51/08 (20060101) C07C 51/373 (20060101) C07D 317/00 (20060101) C07C 63/331 (20060101) C07C 63/66 (20060101) C07D 317/72 (20060101) C07C 63/00 (20060101)
Examiner
Love; Ethel G.
Attorney/Law Firm
Krubiner; Alan M.
Parent Case
This is a division of application Ser. No. 611,057 filed Sept. 8, 1975 now U.S. Pat. No. 3,979,436.
USPTO Field of Search
260/34.9R 260/338 260/340.7
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![Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 1](http://www.wikipatents.com/intermediates-in-the-process-for-the-preparation-of-2-5h-dibenzoadcyclohepten-5-on-2-ylacetic-propionic-and-butyric-acids/T/US4054579-1.jpg "Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 1")
![Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 2](http://www.wikipatents.com/intermediates-in-the-process-for-the-preparation-of-2-5h-dibenzoadcyclohepten-5-on-2-ylacetic-propionic-and-butyric-acids/T/US4054579-2.jpg "Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 2")
![Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 3](http://www.wikipatents.com/intermediates-in-the-process-for-the-preparation-of-2-5h-dibenzoadcyclohepten-5-on-2-ylacetic-propionic-and-butyric-acids/T/US4054579-3.jpg "Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 3")
![Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 4](http://www.wikipatents.com/intermediates-in-the-process-for-the-preparation-of-2-5h-dibenzoadcyclohepten-5-on-2-ylacetic-propionic-and-butyric-acids/T/US4054579-4.jpg "Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 4")
![Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 5](http://www.wikipatents.com/intermediates-in-the-process-for-the-preparation-of-2-5h-dibenzoadcyclohepten-5-on-2-ylacetic-propionic-and-butyric-acids/T/US4054579-5.jpg "Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 5")
![Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 6](http://www.wikipatents.com/intermediates-in-the-process-for-the-preparation-of-2-5h-dibenzoadcyclohepten-5-on-2-ylacetic-propionic-and-butyric-acids/T/US4054579-6.jpg "Intermediates in the process for the preparation of 2-(5H-dibenzo[a,d]cyclohepten-5-on-2-yl)acetic, propionic and butyric acids - US Patent 4054579 - Page 6")
