ammonium chloride; triethylamine; p-toluenesulfonyl chloride in 1,2-dichloro-ethane T=-10 - 25°C; 9 - 20 h; Product distribution / selectivity;

1: With p-toluenesulfonyl chloride in dichloromethane Inert atmosphere; 2: With hydroxylamine hydrochloride in dichloromethane Inert atmosphere; Overall yield = 40 percent;

ammonia; p-toluenesulfonyl chloride in dichloromethane Inert atmosphere;