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:
Jun. 30, 1998
Filed:
Jun. 03, 1993
Applicant:
Inventors:
Jurgen Weber, Oberhausen, DE;
Detlef Kampmann, Bochum, DE;
Detlef Deymann, Essen, DE;
Claus Kniep, Oberhausen, DE;
Assignee:
Hoechst Aktiengesellschaft, Werk, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564473 ;
Abstract
A process for the preparation of N-methylalkylamines of the formula CH.sub.3 --NH--CH.sub.2 --R in which R is an aliphatic radical having 1 to 3 carbon atoms, by reacting an aldehyde of the formula R--CHO with an amine of the formula R'--NH.sub.2 to give a Schiff base, removing the water of reaction, and reacting the Schiff base with methylamine and hydrogen in the presence of a hydrogenation catalyst.