Process for the preparation of organic salts containing bis(perfluoroalkyl) phosphinate anions

US7576242B2 · kind B2 · utility

Assignee

• Merck Patent GmbH · DE

Inventors

• Nikolai Mykola Ignatyev · Duisburg, DE
• Urs Welz-Biermann · Mannheim, DE
• Helge Willner · Neheim, DE
• Andriy Kucheryna · Wuppertal, DE

Key dates

• Filing date: Oct 26, 2004
• Grant date: Aug 18, 2009
• Expiry date: Jun 15, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/301
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a method for the production of organic salts containing bis(perfluoroalkyl)phosphinate anions. According to said method, a tris(perfluoroalkyl)phosphine oxide is reacted with an alcohol and an organic base, which is stronger than the alcohol. The invention also relates to the salts which are produced according to said method and to the use thereof as ionic liquids.