Method for producing quaternary ammonium compounds

US8163951B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Laszlo Szarvas · Ludwigshafen, DE
• Klemens Massonne · Bad Dürkheim, DE
• Matthias Maase · Speyer, DE
• Alfred Oftring · Bad Dürkheim, DE

Key dates

• Filing date: May 27, 2005
• Grant date: Apr 24, 2012
• Expiry date: May 15, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D295/037
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing quaternary ammonium compounds, which comprises reacting compounds comprising an sp3-hybridized nitrogen atom with a dialkyl sulfate or trialkyl phosphate and subjecting the resulting ammonium compound to an anion exchange.