hydrogen; nickel in water; acetic acid P=25857.4 Torr;

With  hydrogenchloride; hydrogen; palladium on activated charcoal in  tetrahydrofuran  Yield given. Yields of byproduct given;   

Stage #1: With  potassium hydroxide; sodium hypochlorite T=90°C; Oxidation; 2 h; Stage #2: With  hydrazine in  hydrogenchloride; toluene T=80°C; hydrazinolysis; 0.5 h; Stage #3: With  diethylamine in  ethanol Hydrolysis;   

Multi-step reaction with 2 steps 1: 87 percent / tetrahydrofuran / 0.25 h / 0 °C2: hydrogen, 6N HCl / 5percent Pd/C / tetrahydrofuran  

With  hydrogenchloride; hydrogen; palladium on activated charcoal in  tetrahydrofuran  Yield given. Yields of byproduct given;