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. 23, 1985
Filed:
Mar. 30, 1981
Applicant:
Inventors:
Jacques Martel, Bondy, FR;
Jean Tessier, Vincennes, FR;
Jean-Pierre Demoute, Montreuil-sous-Bois, FR;
Jean Jolly, Fontenay-sous-Bois, FR;
Assignee:
Roussel Uclaf, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562506 ;
Abstract
Novel lactones of 2,2-dimethyl-cyclopropane-1-carboxylic acids of the formula ##STR1## wherein X.sub.1, X.sub.2 and X.sub.3 when identical are selected from the group consisting of chlorine and bromine and when at least two are different, are selected from the group consisting of fluorine, chlorine and bromine and a novel process for their preparation and a process for the preparation of cis 2,2-dimethylcyclopropane-1-carboxylic acids of the formula ##STR2##