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:
Jan. 29, 1980
Filed:
Mar. 17, 1977
Applicant:
Inventors:
Charles Pigerol, Sisteron, FR;
Marie-Madeleine Chandavoine, Sisteron, FR;
Michel Chignac, Sisteron, FR;
Paul de de Fillain, Sisteron, FR;
Assignee:
Labaz, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549 79 ;
Abstract
3-Thienyl-acetate derivatives of the general formula: ##STR1## wherein R.sub.1 represents an alkyl, a cycloalkyl or an aralkyl radical, R.sub.2 represents hydrogen or R.sub.1 and R.sub.2, when they are taken together to form a cyclic group with the carbon atom to which they are attached, represent a polymethylene radical having from 2 to 5 carbon atoms, are prepared from a mixture consituted by a compound of the formula: ##STR2## wherein R.sub.3 has the meaning given above and an organic halide of the formula: