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:
Sep. 25, 1984
Filed:
Aug. 06, 1982
Applicant:
Inventors:
John Y Lee, Baton Rouge, LA (US);
Thomas J Walter, Baton Rouge, LA (US);
Assignee:
Ethyl Corporation, Richmond, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562506 ; 562497 ; 562520 ;
Abstract
Cyclic-keto-acids of the general formula: ##STR1## wherein R is hydrogen or a monovalent alkyl radical which can be either straight chain or branched having from 1 to about 20 carbon atoms and X=1, 3, or 4, are prepared by reacting a functionalized 1-bromoalkane of the formula: ##STR2## wherein R and X are as defined above and Y is a leaving group, preferably the halogens, in a liquid solvent medium with carbon monoxide at elevated temperature and pressure in the presence of a catalytic amount of a metal carbonyl compound and an alkali or an alkaline earth metal inorganic base.