Process for the fluorination of acrylic acid and derivatives thereof and novel fluorinated esters of 2,3-difluoropropionic acid

US5072030A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Dietmar Bielefeldt · Ratingen, DE
• Karl-Rudolf Gassen · Odenthal, DE
• Walter Lange · Cologne, DE

Key dates

• Filing date: Feb 12, 1990
• Grant date: Dec 10, 1991
• Expiry date: Feb 12, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C51/62
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Difluoropropionic acid and derivatives thereof are prepared by bringing elemental fluorine in the presence of a solvent into an addition reaction with appropriate acrylic acids or derivatives thereof. In this way, it is also possible to obtain novel fluorinated esters of 2,3-difluoropropionic acid.