p-Bromobenzenesulfonyl chloride → HCID 131721910, compound

Participants

Reaction Steps

4-Bromophenylsulphonyl chloride (129 mg) was added at ambient temperature to a stirred solution of 1-[1-(4-pyrimidinyl)pyrrolidin-3-ylcarbonyl]piperazine (130 mg) in THF (8 ml) containing triethylamine (0.14 ml). The mixture was stirred for 2 hours then evaporated. The residue was treated with water (16 ml) and dichloromethane (30 ml) added. Aqueous was separated and re-extracted with dichloromethane (20 ml). The combined organic phases were washed with saturated brine (2×10 ml), dried and evaporated. The residue was purified by chromatography on neutral alumina eluting with dichloromethane/methanol (99/1 v/v) to give, as a colourless solid, 1-(4-bromophenylsulphonyl)-4-[1-(4-pyrimidinyl)pyrollidin-3-ylcarbonyl]piperazine (134 mg), mp 94-6°;

Provenance & Evidence