Patent ID: 8766012
Filing Date: 2014-07-01
Classification: C07C

Abstract:
1. A process for the preparation of 2,2-difluoroethylamine of formula (I) and/or a salt thereof comprising the stages (i) and (ii): stage (i): reaction of 2,2-difluoro-1-haloethane of formula (II) in which Hal is chlorine, bromine or iodine, with prop-2-en-1-amine of formula (III) to give N-(2,2-difluoroethyl)prop-2-en-1-amine of formula (IV) optionally in the presence of an acid scavenger, and stage (ii): removal of the allyl group from the N-(2,2-difluoroethyl)prop-2-en-1-amine of the formula (IV) obtained in stage (i), through which 2,2-difluoroethylamine of the formula (I) and/or a salt thereof is obtained.