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:
Feb. 12, 1985
Filed:
Dec. 27, 1983
Applicant:
Inventors:
Thomas P Malloy, Lake Zurich, IL (US);
Dusan J Engel, Des Plaines, IL (US);
Assignee:
UOP Inc., Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562495 ; 568308 ; 562493 ; 562413 ;
Abstract
A multi-step preparation of 4-vinylbenzeneacetic acid from the readily available 1,4-diethylbenzene is described. The method uses cobalt (II) catalyzed oxidation of 1,4-diethylbenzene to 4-ethylacetophenone followed by oxidative rearrangement of the latter to 4-ethylbenzeneacetic acid, selective photochlorination to produce 4-(1'-chloroethyl)benzeneacetic acid, and finally base-catalyzed dehydrochlorination of the latter to afford the title compound.