Preparation of 4-pentenoates

US4529815A · kind A · utility

Assignee

• BASF SE

Inventors

• Heinz-Walter Schneider · Ludwigshafen, DE
• Rudolf Kummer · Bischofswerda, DE

Key dates

• Filing date: May 9, 1984
• Grant date: Jul 16, 1985
• Expiry date: May 9, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C67/333
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

4-Pentenoates are prepared by isomerization of isomeric pentenoates in the presence of a catalyst, by a process in which isomeric pentenoates are treated at elevated temperatures with an acidic ion exchanger or acidic zeolite which contains a noble metal of group eight of the periodic table, and the 4-pentenoate is distilled off from the reaction mixture.