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. 01, 1994
Filed:
Feb. 25, 1993
Applicant:
Inventors:
Klaus Huthmacher, Gelnhausen, DE;
Hermann Schmitt, Rodenbach, DE;
Assignee:
Degussa AG, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07C / ;
U.S. Cl.
CPC ...
564446 ; 564448 ; 564455 ;
Abstract
The reductive amination of 1,3,3-trimethyl-5-oxocyclohexane carbonitrile (IPN) with ammonia and hydrogen in the presence of nickel- or cobalt Raney catalysts to 3-aminomethyl-3, 5,5-trimethyl-cyclohexyl amine is achieved in a single stage with a good yield and requires no pressure distillation if a co-catalyst selected from the group consisting of salts of nickel, cobalt, yttrium, lanthanum and cerium is used in an amount of 0.01 to 0.5 mole per mole Raney catalyst.