Method for producing alkanesulfonic acids

US6495714B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Klaus Halbritter · Heidelberg, DE
• Hans-Josef Sterzel · Schifferstadt, DE
• Matthias Eiermann · Schifferstadt, DE
• Eva Freudenthaler · Strohberg, DE

Key dates

• Filing date: Aug 3, 2001
• Grant date: Dec 17, 2002
• Expiry date: Aug 3, 2021

Classification

• Technology area (CPC H): Electricity
• CPC primary: H05K3/3473
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing alkanesulfonic acids from dialkyl sulfites comprises the following steps:rearrangement of dialkyl sulfite in the presence of a suitable catalyst to form the corresponding alkyl alkanesulfonate andhydrolysis of the resulting alkyl alkanesulfonate to give the corresponding alkanesulfonic acid.