Process for the manufacture of .beta.-(dimethylamino)-propionitrile

US4172091A · kind A · utility

Assignee

• Ruhrchemie Aktiengesellschaft · DE

Inventors

• Jurgen Weber · Oberhausen, DE
• Helmut Springer · Dinslaken, DE
• Boy Cornils · Dinslaken, DE
• Hans Feichtinger
• Wolfgang Payer · Ulm, DE

Key dates

• Filing date: Mar 6, 1978
• Grant date: Oct 23, 1979
• Expiry date: Mar 6, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C253/30
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

An improvement in a process for the manufacture of .beta.-(dimethylamino)-propionitrile by contacting acrylonitrile with dimethylamine, the improvement residing in passing the reactants in countercurrent with respect to one another in a bubble column reactor and reacting them therein at a temperature between 25.degree. and 80.degree. C., preferably 40.degree. to 60.degree. C.