Hydrochloric Acid → Benzyl(2,2-difluoroethyl)amine

Participants

Reaction Steps

An amount of 5 g (49.7 mmol) of 2,2-difluoro-1-chloroethane and 11.3 g (105 mmol) of benzylamine are heated in an autoclave at an internal temperature of 120° C. for 16 hours. Subsequently, 100 g of 1N hydrochloric acid are added and the solvent is removed under vacuum. The residue is taken up in 50 ml of water and 50 ml of dichloromethane and adjusted to pH 8 with solid sodium hydrogencarbonate. The phases are subsequently separated and the aqueous phase is again extracted with 20 ml of dichloromethane. The organic phase is distilled. An amount of 3.5 g of N-benzyl-2,2-difluoroethanamine is obtained, which corresponds to a yield of 41%, based on 2,2-difluoro-1-chloroethane used.

Provenance & Evidence