hydrogen; palladium on activated charcoal in water P=2205.2 Torr;

Multi-step reaction with 6 steps 1: 97 percent / 4 h / 160 °C2: acetyl chloride / 16 h / Heating3: 80 percent / lithium aluminum hydride / diethyl ether / 3.5 h / Heating4: 98 percent / thionyl chloride / CHCl3 / 2 h / Heating5: 60 percent / tricaprylmethylammonium chloride / H2O / 48 h / 100 °C6: 42 percent / conc. hydrochloric acid / 5 h / Heating  

Multi-step reaction with 5 steps 1: acetyl chloride / 16 h / Heating2: 80 percent / lithium aluminum hydride / diethyl ether / 3.5 h / Heating3: 98 percent / thionyl chloride / CHCl3 / 2 h / Heating4: 60 percent / tricaprylmethylammonium chloride / H2O / 48 h / 100 °C5: 42 percent / conc. hydrochloric acid / 5 h / Heating