Methods of making a polyfluorinated allyl ether and compounds relating to the methods

US11292763B2 · kind B2 · utility

Assignee

• 3M INNOVATIVE PROPERTIES COMPANY · US

Inventors

• Klaus Hintzer · Woodbury, US
• Markus E. Hirschberg · Mühldorf, DE
• Romana Pajkert · Bremen, DE
• Gerd-Volker Röschenthaler · Bremen, DE
• Sergey N. Tverdomed · Bremen, DE

Key dates

• Filing date: May 17, 2018
• Grant date: Apr 5, 2022
• Expiry date: Dec 29, 2038

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C309/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A method includes combining first components including at least one of CF2═CF—CF2—OSO2Cl or CF2═CF—CF2—OSO2CF3, a polyfluorinated compound having at least one ketone or carboxylic acid halide, and fluoride ion to provide a compound comprising at least one perfluorinated allyl ether group. A method includes combining second components including B(OSO2Cl)3 and hexafluoropropylene to provide CF2═CF—CF2—OSO2Cl. Another method includes combining second components including M(OSO2CF3)3 and hexafluoropropylene at a temperature above 0° C. to provide CF2═CF—CF2—OSO2CF3, wherein M is Al or B. The compound CF2═CF—CF2—OSO2Cl is also provided.