(4-bromophenyl)-pyrrolidin-1-ylmethanone

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A solution of 4-bromobenzoyl chloride (3 g, 13.7 mmol)) in dichloromethane (25 mL) was cooled to 0° C. and treated with pyrrolidine (2.5 mL, 30.3 mmol) and triethylamine (2 mL, 14.4 mmol). The mixture was warmed to ambient temperature over 3 hours and concentrated. The residue was purified by flash chromatography on silica gel using 10-60% hexane/ethyl acetate to provide the title compound (3.1 g, 89%). MS (ESI) m/e 256 (M+H)+. concentrated The residue was purified by flash chromatography on silica gel using 10-60% hexane/ethyl acetate