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:
Aug. 15, 1995
Filed:
Apr. 04, 1994
Applicant:
Inventors:
Vilas M Chopdekar, Edison, NJ (US);
James R Schleck, Somerset, NJ (US);
Assignee:
Jame Fine Chemicals, Inc., Bound Brook, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 65 ;
Abstract
An improved process for the preparation of esters of 3,5,6-trichlorosalicylic acid which comprises reacting the acid with an alcohol under distillation conditions in the presence of a catalyst comprising a glycol titanate or glycol stannate. The process results in substantially quantitative yields of the ester without any significant side reactions, e.g. conversion of the alcohol to by-product ether.