hydrogen; platinum(IV) oxide in acetic acid P=760 Torr; 336 h;

1: 98 percent / hydrogen / PtO2 / acetic acid / 336 h / 760 Torr 2: 84 percent / K2CO3 / dioxane; H2O / 3 h View Scheme

1: 98 percent / hydrogen / PtO2 / acetic acid / 336 h / 760 Torr 2: 84 percent / K2CO3 / dioxane; H2O / 3 h View Scheme

Multi-step reaction with 4 steps 1: 64 percent / POCl3, ZnCl2 / nitrobenzene / 3 h / 60 °C2: 88 percent / K2CO3, KI / ethanol / 72 h / Heating3: 91 percent / 2 N NaOH / ethanol / 16 h / Heating4: 85 percent / NH2OH*HCl, triethylamine / methanol; H2O / 72 h / Heating