Method for producing phosphonium salts

US7547807B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Laszlo Szarvas · Ludwigshafen, DE
• Klemens Massonne · Bad Dürkheim, DE
• Harald Laas · Frankenthal (Pfalz), DE
• Kai Michael Exner · Eppelheim, DE
• Detlev Glas · Bischofswerda, DE

Key dates

• Filing date: Dec 14, 2004
• Grant date: Jun 16, 2009
• Expiry date: Sep 6, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/5442
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing quaternary phosphonium salts by reacting a ternary phosphine with an optionally substituted, saturated or monounsaturated or polyunsaturated electrophile having from 3 to 25 carbon atoms in ternary solvent mixtures.