lithium aluminium tetrahydride in diethyl ether T=0 - 20°C; 18 h;

1: 99 percent / potassium hydroxide / H2O / Heating 2: 65 percent / potassium hydroxide / methanol / Heating; electrolysis 3: 82 percent / 10 percent sulphuric acid / dioxane / 3 h / Ambient temperature View Scheme