反应详情

An ice cold solution of the 4,5-dimethyl thiazole (2,26 g, 20 mmol) in dry dichloromethane (15 ml) was treated dropwise with a solution of o-mesitylenesulfonylhydroxylamine (4.3 g, 20 mmol) in dry dichloromethane (15 ml). After stirring for 2 hours at room temperature, anhydrous ether (10 ml) was added. On cooling, colorless needles of the title product, 3-amino-4,5-dimethyl-thiazolium mesitylenesulfonate, separated (3.48 g), m.p. 165-168° C.

1. temperatureOn cooling
2. customcolorless needles of the title product, 3-amino-4,5-dimethyl-thiazolium mesitylenesulfonate, separated (3.48 g), m.p. 165-168° C.