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:
Nov. 24, 1998
Filed:
Oct. 15, 1997
Applicant:
Inventors:
Ronald E Montgomery, Yardley, PA (US);
Leland A Smeltz, Langhorne, PA (US);
Assignee:
FMC Corporation, Philadelphia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560124 ; 562506 ; 562866 ; 562867 ;
Abstract
This invention relates to a process for preparing certain isomers of 2,2-dimethyl-3-(2,2-disubstitutedvinyl)cyclopropanecarboxylic acid or derivatives thereof. More specifically it relates to the epimerization of the 1S cyclopropanecarboxylic acid and its derivatives into the corresponding 1R isomers.