hydrogen; palladium on activated charcoal in acetic acid 6 h;

Multi-step reaction with 2 steps 1: 83 percent / H2 / 10percent Pd/C / acetic acid / 6 h2: 1.) NaNO2; 2.) NaN3 / 1.) acetic acid/H20, 0 - 5 deg C, 15 min; 2.) 3 h