Preparation of sulfatobetaines

US4855423A · kind A · utility

Assignee

• BASF SE

Inventors

• Gerold Braun · Ludwigshafen, DE
• Chung-Ji Tschang · Bad Dürkheim, DE
• Christos Vamvakaris · Kallstadt, DE
• Klaus Glaser · Mutterstadt, DE

Key dates

• Filing date: Oct 13, 1987
• Grant date: Aug 8, 1989
• Expiry date: Oct 13, 2007

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D213/20
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Sulfatobetaines are prepared by reacting an addition compound of sulfur trioxide and a tertiary amine with an alkylene carbonate.