Manufacture of .beta.-chlorocarboxylic acid chlorides

US4213919A · kind A · utility

Assignee

• BASF SE

Inventors

• Joachim Datow · Ludwigshafen, DE
• Martin Decker · Ludwigshafen, DE
• Karl Merkel · Ludwigshafen, DE
• Franz Neumayr

Key dates

• Filing date: Nov 13, 1978
• Grant date: Jul 22, 1980
• Expiry date: Nov 13, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/60
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The manufacture of .beta.-chlorocarboxylic acid chlorides by reacting .alpha..beta.-olefinically unsaturated carboxylic acids with phosgene is advantageously carried out by first at least partially reacting the unsaturated carboxylic acid with hydrogen chloride and then carrying out the reaction with phosgene.