amidosulfamic acid in diethylene glycol dimethyl ether 0.133333 h; RefluxMicrowave irradiationGreen chemistry;

hydrogen; palladium on activated charcoal in ethanol T=50°C; P=2660 Torr; 5 h;

1: 76 percent / triethylamine, SOCl2 / tetrahydrofuran / 20 h / Ambient temperature 2: 66 percent / 3-chloroperbenzoic acid (m-CPBA) / CH2Cl2 / 96 h / Ambient temperature 3: 94 percent / H2 / 5percent Pd/C / ethanol / 5 h / 50 °C / 2660 Torr View Scheme