反应详情

温度

0 °C

9.92 g (0.032 mol) of N-tert-butyl-5-formylamino-2-methoxycarbonylbenzenesulfonamide are dissolved in 50 ml of CHCl3, and then 5 ml (0.053 mol) of boranedimethyl sulfide complex are added at 0° C. After 1 h at 0° C. and 3 h at room temperature the reaction mixture is cooled to 0° C. 30 ml of methanol are added and the mixture is washed with water. The organic phase is dried over magnesium sulfate, the solvent is removed by distillation, and 9.23 g (98% of theory) of N-tert-butyl-2-methoxycarbonyl-5-methylaminobenzenesulfonamide are obtained. m.p.: 120°-124° C.

1. addition5 ml (0.053 mol) of boranedimethyl sulfide complex are added at 0° C
2. washthe mixture is washed with water
3. dry with materialThe organic phase is dried over magnesium sulfate
4. customthe solvent is removed by distillation, and 9.23 g (98% of theory) of N-tert-butyl-2-methoxycarbonyl-5-methylaminobenzenesulfonamide
5. customare obtained