Process for the preparation of acyloxybenzenesulfonates

US6639096B2 · kind B2 · utility

Assignee

• Clariant Corporation · DE

Inventors

• Gerd Reinhardt · Kelkheim, DE
• Peter Naumann · Stockelsdorf, DE
• Miriam Ladwig · Dietzenbach, DE
• Ina Golla · Rüsselsheim am Main, DE
• Torsten Pilz · Königstein, DE
• Reto Wieduwilt · Kaiseraugst, CH
• Henri Jourdan · Basel, CH

Key dates

• Filing date: Aug 1, 2002
• Grant date: Oct 28, 2003
• Expiry date: Aug 1, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C303/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Process for the preparation of acyloxybenzenesulfonates by reaction of phenolsulfonate with a water content of less than 0.5% by weight and alkanecarbonyl halide in a hydrocarbon as solvent and in the presence of a catalyst in the form of a basic nitrogen-containing compound.