Patent · US Expired

Process for the preparation of N-methylalkylamines

US5773658A · kind A · utility

2Cited by

0References

22Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Jurgen Weber · Oberhausen, DE
Detlef Kampmann · Bochum, DE
Detlef Deymann · Essen, DE
Claus Kniep · Oberhausen, DE

Key dates

Filing date	Jun 3, 1993
Grant date	Jun 30, 1998
Priority date	—
Expiry date	Jun 3, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07C209/26
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.