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. 10, 1981
Filed:
Sep. 10, 1980
Applicant:
Inventor:
Bernard Dubreux, Francheville Le Bas, FR;
Assignee:
PCUK Produits Chimiques Ugine Kuhlmann, Courbevoie, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
260464 ;
Abstract
Process for the preparation of 3-cyano-3,5,5-trimethylcyclohexanone from isophorone and cyanides, characterized by the fact that an organic phase containing the isophorone and an aqueous phase containing the cyanide are brought into contact in the presence of a catalytic amount of a phase transfer agent, such as quaternary ammonium or phosphonium salts.