hydrogen; palladium on activated charcoal in methanol P=1034.3 Torr; 4 h;

1: 1.) hexamethyldisilazane, ammonium sulfate, 2.) Me3SiCl, CF3SO3Cl / 1.) acetonitrile, reflux, 2.) acetonitrile, reflux, 3 h 2: 90 percent / NH3 / methanol / 24 h / 4 °C 3: 70 percent / H2 / 10percent Pd/C / methanol / 4 h / 1034.3 Torr View Scheme

1: 90 percent / NH3 / methanol / 24 h / 4 °C 2: 70 percent / H2 / 10percent Pd/C / methanol / 4 h / 1034.3 Torr View Scheme