1-Benzylpiperazine → HCID 15057451, compound

Participants

Reaction Steps

To a stirred and cooled mixture (10° C.) of 64 parts of 1-(phenyl-methyl)piperazine and 360 parts of tetrahydrofuran were added during 20 minutes 32.5 parts of 2,4-difluorobenzoyl chloride. Upon complete addition, stirring was continued until room temperature. The formed salt was filtered off and the filtrate was evaporated in vacuo. The residue was purified by column chromatography over silica gel using a mixture of trichloromethane and methanol (95:5 by volume) as eluent. The pure fractions were collected and the eluent was evaporated, yielding 50 parts (87.8%) of 1-(2,4-difluorobenzoyl)-4-(phenylmethyl)-piperazine as a residue (int. 5).

Provenance & Evidence