Sodium Chloride → Methyl 1-hydrazinothiocarbonylpiperidine-4-carboxylate

Participants

Reaction Steps

Methyl isonipecotinate (1.0 g, 6.98 mmol) in tetrahydrofuran was mixed with thiocarbonyldiimidazole (1.24 g, 6.98 mmol) at room temperature and then stirred at room temperature for 1.5 hours and stirred with hydrazine monohydrate (700 mg, 14.0 mmol) for another 4 hours. The reaction solution was mixed with saturated aqueous sodium chloride and extracted with ethyl acetate and chloroform. The extract was dried over anhydrous magnesium sulfate and filtered, and the filtrate was concentrated to give the crude preparation of the desired product (114% yield).

Provenance & Evidence