Method for producing bis(fluoralkyl)phosphinic acid chlorides or fluoralkylphosphonic acid chlorides

US8378157B2 · kind B2 · utility

Assignee

• MERCK PATENT GESELLSCHAFT MIT BESHRANK TER HAFTUNG · DE

Inventors

• Nikolai (Mykola) Ignatyev · Duisburg, DE
• Dana Bejan · Wuppertal, DE
• Helge Willner · Neheim, DE
• Emil Aust · Mainz, DE

Key dates

• Filing date: Jun 24, 2009
• Grant date: Feb 19, 2013
• Expiry date: Jun 24, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/535
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for the preparation of bis(fluoroalkyl)phosphinyl chlorides or fluoroalkylphosphonyl dichlorides by reaction of the corresponding bis(fluoroalkyl)phosphinic acid or fluoroalkylphosphonic acid with aryltetrachlorophosphorane as chlorinating agent.