Preparation of cyanoacetic esters

US6130347A · kind A · utility

Assignee

• BASF SE

Inventors

• Manfred Julius · Schifferstadt, DE
• Rolf Schneider · Burgstetten, DE
• Klaus Mundinger · Schifferstadt, DE
• Jakob Fischer · Haag in Oberbayern, DE

Key dates

• Filing date: Nov 2, 1999
• Grant date: Oct 10, 2000
• Expiry date: Nov 2, 2019

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C253/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Cyanoacetic esters are prepared by reacting a corresponding monochloroacetic ester with hydrogen cyanide in the presence of a base, where the base is a compound selected from the group consisting of tertiary amines, salts of carbonic acid, salts of carbonic acid monoesters, salts of carboxylic acids, amidines, guanidines and aromatic N-heterocyclic compounds.