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. 21, 1998
Filed:
Feb. 21, 1997
Applicant:
Inventor:
Stephen E Belmont, Baton Rouge, LA (US);
Assignee:
Albemarle Corporation, Richmond, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568322 ;
Abstract
The process forms an alkyl aralkyl ketone from an aralkenyl secondary alcohol having an allylic double bond relative to the hydroxycarbinyl group, and having the allylic double bond positioned between the aryl moiety and the hydroxycarbinyl group. This is accomplished by heating the alcohol in a chemically indifferent organic liquid medium to which a catalytic quantity of an iron polycarbonyl has been added, so that an internal rearrangement occurs. Among the ketones that can be efficiently produced in this manner is non-steroidal antiinflammatory agent, 4-(6'-methoxy-2'-naphthyl)-butan-2-one, generally known as nabumetone.