Method for producing conjugated linoleic acid glycerides

US7179929B2 · kind B2 · utility

Assignee

• Cognis Deutschland GmbH & Co. KG · DE

Inventors

• Peter Horlacher · Senden, DE
• Franz Timmermann · Illertissen, DE
• Juergen Gierke · Illertissen, DE
• Karl-Heinz Ruf · Babenhausen, DE

Key dates

• Filing date: Apr 25, 2003
• Grant date: Feb 20, 2007
• Expiry date: Jun 17, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07B2200/09
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Processes for preparing conjugated fatty acid glycerides comprising: (a) isomerizing a fatty acid lower alkyl ester corresponding to the general formula (I) in the presence of a basic catalyst at a temperature of from 100 to 160° C., to form a conjugated fatty acid lower alkyl ester:R1CO—OR2  (I)wherein R1CO represents an acyl radical having from 16 to 22 carbon atoms and at least two carbon-carbon unsaturations and R2 represents an alkyl radical having from 1 to 4 carbon atoms; and (b) transesterifying the conjugated fatty acid lower alkyl ester with glycerol to form a conjugated fatty acid glyceride, wherein a lower alkanol corresponding to the general formula R2OH is formed, wherein R2 is as defined above, and the lower alkanol is continuously removed from the transesterification reaction; are described.