反应详情

To a solution of the obtained 2-(1-butynyl)-4-methoxypyridine (10.0 g) in dichloromethane (100 mL) there was added dropwise a solution of O-mesitylenesulfonylhydroxyamine (16.0 g) in dichloromethane (100 mL) at 0° C., and the mixture was stirred for 1 hour. Diethyl ether (250 mL) was added to the reaction mixture, and the precipitated solid was suction filtered and dried to obtain N-amino-2-(1-butynyl)-4-methoxypyridinium mesitylenesulfonate as a white salt (20.7 g).

1. filtrationfiltered
2. customdried