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:
Jan. 05, 1999
Filed:
Oct. 01, 1997
Applicant:
Inventors:
Mose Santaniello, Nettuno, IT;
Carlo Alberto Bagolini, Roma, IT;
Agostino Uttaro, Gaeta, IT;
Silverio Fontana, Latino Scalo, IT;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562606 ;
Abstract
A process for making valproic acid from an alkyl alkanoylacetate is disclosed. The alkyl alkanoylacetate is reacted with an n-propyl halide in a biphasic system in the presence of a base and a phase transfer catalyst. The product mixture is acidified to convert the resulting valproate salt into valproic acid.