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. 28, 1987
Filed:
Nov. 29, 1984
Applicant:
Inventors:
Assignee:
The British Petroleum Company p.l.c., London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
560100 ; 560 55 ; 560 64 ; 560103 ; 560112 ; 560232 ; 560105 ; 562517 ; 562519 ;
Abstract
Carboxylic acids and/or esters thereof are produced by reacting either a benzylic or an aromatic mercaptan with carbon monoxide and either water or an aqueous alcohol at elevated temperature, suitably in the range from 100.degree. to 300.degree. C., in the presence as catalyst of a cobalt carbonyl, the product using water as the reactant being a carboxylic acid and using aqueous alcohol as the reactant a carboxylic acid ester, mixtures of acids and esters being formed using aqueous alcohols having high water concentrations.