1: 46 percent / LiAlH4 / dioxane / 17 h / Heating 2: 95 percent / H2 / 5percent Pd/Al2O3 / methanol / 5 h 3: 1.) sodium tert-pentanoxide / benzene / 1.) 2 h, 2.) 12 h 4: H2 / 5percent Pd/Al2O3 / methanol / 4 h View Scheme