Process for the manufacture of unsaturated carboxylic acid esters

US4409396A · kind A · utility

Assignees

• Wacker Chemie AG · DE
• Hoechst GmbH · DE

Inventors

• Dominik Dempf · Mehring, DE
• Ludwig Schmidhammer · Haiming, DE
• Gerhard Dummer · Altötting, DE
• Gunter Roscher · Kelkheim, DE
• Karl-Heinz Schmidt · Waldkraiburg, DE
• Ernst Selbertinger · Burghausen, DE
• Rudolf Strasser · Baoshan, TW

Key dates

• Filing date: Sep 3, 1981
• Grant date: Oct 11, 1983
• Expiry date: Sep 3, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/055
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the manufacture of unsaturated carboxylic acid esters by the reaction of olefins or cyclo-olefins with oxygen and carboxylic acids in the gaseous phase, in the presence of a catalyst which contains elements of the subsidiary group VIII of the periodic system and/or compounds thereof, and an alkali metal acetate, at temperatures of from 100.degree. to 250.degree. C. and pressures of from 0.5 to 21 bar absolute, wherein from 1 to 8000 parts per million (by weight), calculated on the carboxylic acid used, of organic chlorine compounds are added to the reaction mixture.