lithium aluminium tetrahydride in diethyl ether 2 h; Heating;

1: 79 percent / LiAlH4 / diethyl ether / 2 h / Heating 2: 73 percent / NEt3 / butan-1-ol / Heating 3: 69 percent / conc. HCl / 6 h / Ambient temperature 4: 31 percent / pyridine / 3 h / 50 °C 5: 85 percent / conc. HCl / ethanol; CHCl3 / 1 h / Ambient temperature 6: 78 percent / liq. NH3 / 40 °C View Scheme