Process for preparing 2,2-difluoroethylamine

US8188319B2 · kind B2 · utility

Assignee

• BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

• Norbert Lui · Odenthal, DE
• Sergii Pazenok · Solingen, DE
• Yuriy Grigorievich Shermolovich · Horlivka, UA

Key dates

• Filing date: Jul 27, 2010
• Grant date: May 29, 2012
• Expiry date: Dec 9, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C209/08
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing 2,2-difluoroethylamine proceeding from 2,2-difluoro-1-haloethane using ammonia in a solvent which has a maximum water content of 15% by volume and in the presence of a catalyst which accelerates the reaction with ammonia.