Hydrazine → HCID 57947719, compound

Participants

Reaction Steps

A mixture of methyl 3-(3-fluorophenyl)isoxazole-5-carboxylate (prepared according to the literature method: T. T. Dang, U. Albrecht and P. Langer, Preparation 2006, No. 15, 2515-252; or treatment of 3-(3-fluorophenyl)isoxazole-5-carboxylic acid with thionyl chloride and methanol) (5.55 g, 25 mmol, 1.0 equiv.), hydrazine (960 mg, 30 mmol) and MeOH (100 mL) was refluxed for 1 h and concentrated. The residue was washed with dichloromethane and dried in vacuum to give 3-(3-fluorophenyl)isoxazole-5-carbohydrazide (5.6 g, quant.). LRMS (M+H+) m/z 222.0

Provenance & Evidence