1: 68 percent / aq. HNO3 / 2 h / Heating 2: 54 percent / 98percent N2H4*H2O / Raney Ni / ethanol / 1.5 h / Heating 3: 91 percent / 0.83 h / Heating View Scheme

1: 54 percent / 98percent N2H4*H2O / Raney Ni / ethanol / 1.5 h / Heating 2: 91 percent / 0.83 h / Heating View Scheme

1: 32 percent / ZnCl2/FeCl3*6H2O / ethanol / 12 h / Heating 2: 68 percent / aq. HNO3 / 2 h / Heating 3: 54 percent / 98percent N2H4*H2O / Raney Ni / ethanol / 1.5 h / Heating 4: 91 percent / 0.83 h / Heating View Scheme

0.833333 h; Heating;