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:
Apr. 12, 1994
Filed:
Jun. 16, 1993
Applicant:
Inventor:
Beat Winter, Sezenove/Bernex, CH;
Assignee:
Firmenich S.A., Geneva, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ; C07D / ;
U.S. Cl.
CPC ...
560126 ; 549546 ;
Abstract
Process for the preparation of alkyl 3-oxo-2-pentyl-1-cyclopentene acetates starting from an epoxy-ester of formula ##STR1## wherein R designates a lower linear or branched alkyl radical of C.sub.1 -C.sub.6 and wherein the wavy line stands for a C--C bond of cis or trans configuration via an isomerization process.