.alpha.-iminodiacetonitriles and their preparation

US4543215A · kind A · utility

Assignee

• BASF SE

Inventors

• Fritz Brunnmueller · Schifferstadt, DE
• Michael Kroener · Mannheim, DE

Key dates

• Filing date: Nov 2, 1983
• Grant date: Sep 24, 1985
• Expiry date: Nov 2, 2003

Classification

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

Abstract

Novel .alpha.-iminodiacetonitriles are prepared by a process in which an aldehyde-cyanohydrin or a haloacetonitrile is reacted with an aminonitrile, the reaction being carried out in the presence of a lower alkanol in the case of the preparation of symmetric .alpha.-iminodiacetonitriles, and in the presence of an auxiliary base in the case of the preparation employing a haloacetonitrile. The .alpha.-iminodiacetonitriles obtainable by the process of the invention are useful starting materials for the preparation of dyes, fungicides, bactericides, herbicides, textile assistants, anticorrosion agents, complex-forming agents, stabilizers in electroplating baths and inhibitors for antifreezes.