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:
Oct. 12, 1999
Filed:
Mar. 16, 1998
Applicant:
Inventor:
Walter Gerhard Brouwer, Guelph, CA;
Assignees:
Uniroyal Chemical Company, Inc., Middlebury, CT (US);
Uniroyal Chemical Co./CIE., Elmira, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
549 57 ;
Abstract
A process for the preparation of a substituted 2-benzo[b]thiophenecarboxylic acid compound or an alkali metal salt thereof, which comprises reacting a halobenzoyl derivative with mercaptoacetic acid in the presence of an alkali metal hydroxide and water. Substituted 2-benzo[b]thiophenecarboxylic acid compounds and alkali metal salts thereof are useful as intermediates for pharmaceuticals, agricultural chemicals, material preservatives, and the like.