1: hydroxylamine hydrochloride, KOH / methanol / 0.5 h / 0 °C 2: 78.4 percent / LiAlH4 / tetrahydrofuran / 4 h / Heating 3: 1.97 g / pyridine / CH2Cl2 / 0.5 h / 0 °C 4: 100 percent / m-chloroperbenzoic acid / CH2Cl2 / 3 h / 20 °C 5: HIO4 / dioxane; H2O / 4 h / 25 °C 6: dimsylsodium / dimethylsulfoxide / 4 h / 25 °C View Scheme