Method of producing acid fluorides from acid chlorides

US6723874B1 · kind B1 · utility

Assignee

• SOLVAY FLUOR und DERIVATE GmbH · DE

Inventors

• Max Braun · Großburgwedel, DE
• Matthias Rieland · Hannover, DE
• Francine Janssens · Vilvoorde, BE
• Kerstin Eichholz · Langenhagen, DE
• Stefan Palsherm · Barsinghausen, DE

Key dates

• Filing date: May 30, 2001
• Grant date: Apr 20, 2004
• Expiry date: May 30, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/60
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Acid fluorides, for example carboxylic acid fluorides and sulfuryl fluoride are produced by reacting the corresponding acid chlorides with hydrogen fluoride adducts of ammonium fluoride or amine hydrofluorides (which act as a catalyst or as a fluorination agent). Consumed HF adducts may be regenerated with HF.