Preparation of fatty acid esters of isopropylidene derivatives of polyglycerol

US5403941A · kind A · utility

Assignee

• Deutsche Solvay-Werke GmbH · DE

Inventors

• Gerald Jakobson · Rheinberg, DE
• Werner Siemanowski · Rheinberg, DE

Key dates

• Filing date: Apr 12, 1993
• Grant date: Apr 4, 1995
• Expiry date: Apr 12, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D317/24
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of mono-fatty acid or hydroxymono-fatty acid esters of isopropylidene derivatives of a polyglycerol is disclosed. A C6-C22 fatty acid or -hydroxy fatty acid is reacted with isopropylideneglycerol glycidyl ether or diisopropylidenetriglycerol glycidyl ether in a molar ratio of 0.5:1 to 1:0.5 at temperatures of 373473 K. in the presence of a catalyst. The monoisopropylidenediglycerol mono-fatty acid ester or monoisopropylidenediglycerol hydroxy mono-fatty acid ester or diisopropylidenetetraglycerol mono-fatty acid ester or diisopropylidenetetraglycerol hydroxy mono-fatty acid ester obtained is optionally purified by distillation, fractional distillation and/or ion exchange.