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:
Nov. 03, 1987
Filed:
Jun. 02, 1986
Applicant:
Inventors:
James S Farina, Swanton, VT (US);
Corbin L Cummings, Isle LaMotte, VT (US);
Assignee:
American Home Products Corporation (Del.), New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
568316 ;
Abstract
A process is provided for preparing 3-hydroxy-3-phenyl-butan-2-one, useful in the preparation of acifran, in high yields by reacting 2,3-butanedione with the appropriate Grignard reagent at low temperature in tetrahydrofuran or admixtures thereof with toluene.
Quick Actions:
Farina, James. (1987). Preparation of 3-hydroxy-3-phenylbutan-2-one (U.S. Patent No. 4704475). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4704475
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile