反应详情

To a solution of tert-butyl-1-piperazinecarboxylate (15.0 g) in dichloromethane (150 mL) and methanol (150 ml) at 0° C. was added hydrogen chloride (40 mL; 2M solution in diethyl ether). The mixture was stirred at room temperature for 1.5 hours and reduced in vacuo to yield tert-butyl-1-piperazinecarboxylate hydrochloride (17.9 g).