Chloroacetyl chloride → 2-Chloro-1-[4-(4-fluoro-benzyl)-(2R,5S)-2,5-dimethyl-piperazin-1-yl]-ethanone

Participants

Reaction Steps

To a solution of (2R, 5S)-1-(4-fluoro-benzyl)-2,5-dimethyl-piperazine (2.5 g, 11.25 mmol) in dry dichloromethane (11 ml) at 0° C. was added triethylamine (1.57 ml, 11.2 mmol) followed by chloroacetyl chloride (0.858 ml, 11.2 mmol). The resulting reaction mixture was stirred for 30 minutes. The reaction was then filtered through a pad of celite, washed with dichloromethane and the resulting filtrate was concentrated to give a yellow oil Chromatography on silica get gave the title compound (2.84 g, 86% yield).

Provenance & Evidence