Process for the preparation of tris(perfluoroalkyl)phosphine oxides

US8962892B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Nikolai Mykola Ignatyev · Duisburg, DE
• Waldemar Wiebe · Cologne, DE
• Helge Willner · Neheim, DE

Key dates

• Filing date: Feb 17, 2011
• Grant date: Feb 24, 2015
• Expiry date: Sep 26, 2031

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P20/582
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the preparation of tris(perfluoroalkyl)phosphine oxides by reaction of tris(perfluoroalkyl)difluorophosphorane with alkaline-earth metal oxides, alkaline-earth metal carbonates, zinc oxide, copper(I) oxide, copper(II) oxide, silver oxide, mercury(II) oxide, cadmium oxide or cadmium carbonate.