Triethylamine → Benzoic acid N'-[3-(2-bromo-phenyl)-propionyl]-N'-isopropyl-hydrazide

Participants

Reaction Steps

A solution of (3-(2-bromophenyl)propionic acid (257 mg, 1.12 mmoles) and benzoic acid N′-isopropyl-hydrazide (200 mg, 1.12 mmoles) in DMF (6 mL) was treated with triethylamine (0.47 mL, 3.36 mmol), HOBT (182 mg, 1.34 mmoles) and EDCI (2.58 g, 1.34 mmol) at room temperature for 72 h. The reaction mixture was partitioned between water and dichloromethane. The organic layer was successively washed with water and brine, then dried over sodium sulfate, filtered and concentrated. The crude was absorbed on silica and purified on a silica gel column with a 20-30% ethyl acetate/hexanes gradient to afford the product as a solid (258 mg, 59%).

Provenance & Evidence