1: 84 percent / H2 / Raney-Ni / ethanol / 6 h / 100 °C / 60004.8 Torr 2: 79.7 percent / 20percent aq. HCl / 3.5 h / Heating View Scheme

1: 90.7 percent / diethyl ether 2: 89.9 percent / hydroxylammonium chloride, pyridine / ethanol / 12 h 3: 84 percent / H2 / Raney-Ni / ethanol / 6 h / 100 °C / 60004.8 Torr 4: 79.7 percent / 20percent aq. HCl / 3.5 h / Heating View Scheme

hydrogenchloride 3.5 h; Heating;