The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 19, 1987
Filed:
May. 03, 1985
Applicant:
Inventor:
Guy P Adrian, Jardin, FR;
Assignee:
Delalande S.A., Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562492 ; 562465 ; 562496 ; 560102 ; 560105 ; 560 59 ; 560 55 ;
Abstract
A process for preparing hydratropic acids and the esters thereof, of formula Ar--CH(CH.sub.3)--COOR where R=H or lower alkyl and Ar=phenyl possibly substituted. This process consists in reacting on the propiophenones of formula ArCOCH.sub.2 CH.sub.3, a chlorinating or brominating agent, an alcohol R'OH where R'=lower alkyl, an orthoester R.sub.1 --C(OR').sub.3 wherein R.sub.1 =H or lower alkyl, and metal zinc; then possibly hydrolyzing the esters obtained. With this process can be prepared hydratropic acids known for their anti-inflammatory activity.