Method of manufacturing N-alkyl-N'-methyl-alkyleneureas, particularly N,N'- d

US4864026A · kind A · utility

Assignee

• Huls Aktiengesellschaft · DE

Inventors

• Peter Bickert · North Edison, US
• Hans Bellut · Schneverdingen, DE

Key dates

• Filing date: Jan 15, 1988
• Grant date: Sep 5, 1989
• Expiry date: Jan 15, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D233/32
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method of manufacturing N-alkyl-N'-methyl-alkyleneureas, by reacting an alkyleneurea with formaldehyde to produce a hydroxymethyl-alkyleneurea, and further reacting said hydroxymethyl-alkyleneurea with formic acid to yield a N-alkyl-N'-methyl-alkyleneurea product, wherein the molar ratio of the N-alkyl-N'-hydroxymethyl-alkyleneureas or N,N'-(bis)hydroxymethyl-alkyleneureas is from 1-2 to 1-10, preferably 1-4 to 1-7.