logo

For the Inventor, By the Inventor

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.:

US 5084533 B1

PDFFull Text
Date of Patent:
Jan. 28, 1992

Filed:

Jul. 25, 1990

Neat (solventless) hydrogenation of 4-acetoxyacetophenone in the

Applicant:
Inventors:

Bakulesh N Shah, Corpus Christi, TX (US);

Donna L Keene, Carrollton, VA (US);

Assignee:

Hoechst Celanese Corporation, Somerville, NJ (US);

Attorneys:

Church; Shirley L.

Roberts; Richard S.

Primary Examiner:

John C Bleutge

Assistant Examiner:

Mark Sweet

Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526 75 ; 525371 ;
Abstract

A process for the solventless (neat) hydrogenation of 4-acetoxyacetophenone to produce 4-acetoxyphenyl methylcarbinol. The reaction proceeds by heating at 54.degree. C. to 120.degree. C. with an excess of hydrogen in the presence of a Pd/C or activated nickel such as Raney Nickel catalyst in the absence of a solvent. The 4-acetoxyphenyl methylcarbinol may then be dehydrated to 4-acetoxystyrene. The later may be polymerized to poly(4-acetoxystyrene) and hydrolyzed to poly(4-hydroxystyrene).

Find Patent Forward Citations

Shah, Bakulesh. (1992). Neat (solventless) hydrogenation of 4-acetoxyacetophenone in the (U.S. Patent No. 5084533). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5084533

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…