Process for the preparation of trifluoroacrylates

US4835305A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Peter Blickle · Hofheim, DE
• Klaus Hintzer · Woodbury, US
• Werner Schwertfeger · Altötting, DE
• Dieter Ulmschneider · Königstein, DE

Key dates

• Filing date: Apr 13, 1988
• Grant date: May 30, 1989
• Expiry date: Apr 13, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/58
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A trifluoroacrylate has been prepared by reacting hexafluoropropene with halogen fluorosulfate (halogen X:Cl, Br or I), eliminating the fluorosulfate CF.sub.3 --CFX--CF.sub.2 --OSO.sub.2 F to give the acid fluoride CF.sub.3 --CFX--COF, esterifying the acid fluoride and dehalogenating the product using a metal component.