Preparation of aminoitriles

US4478759A · kind A · utility

Assignee

• BASF SE

Inventors

• Harry Distler · Worms, DE
• Karl-Ludwig Hock · Ludwigshafen, DE

Key dates

• Filing date: Jul 15, 1981
• Grant date: Oct 23, 1984
• Expiry date: Jul 15, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C255/00
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Aminonitriles are prepared by reacting a nitrogen compound with formaldehyde and hydrogen cyanide in the presence of an additional acid at a pH below 2 and at from 10.degree. to 70.degree. C., the concentration of the hydrogen cyanide during the reaction being not more than 3 per cent by weight, based on the reaction mixture. The aminoacetonitriles obtained by the novel process are valuable starting materials for the preparation of dyes, fungicides, bactericides, textile assistants, rubber additives, and auxiliaries used in water softening, cosmetics, the photographic industry, the paper industry and the electroplating industry.