hydrogenchloride; iron in water 48 h; Reflux;

1: 71 percent / hydrazine hydrate / Raney nickel / ethanol / 5 h / Heating 2: 86 percent / HCl gas / diethyl ether / 0.5 h 3: 62 percent / 2 h / Heating 4: 48 percent / 10 percent NaOH / 0.5 h / 30 °C View Scheme

With  hydrazine hydrate; nickel in  ethanol 5 h;  Heating;