1: sodium carbonate; m-chloroperbenzoic acid / CH2Cl2 / 7 h / 20 °C 2: 551 mg / active neutral alumina / diethyl ether / 12 h / 20 °C 3: 100 percent / LiAlH4 / diethyl ether / 0 - 20 °C 4: pyridine / diethyl ether / 0 - 20 °C 5: 84 percent / pyridinium chlorochromate / CH2Cl2 / 4 h / 20 °C 6: 78 percent / active neutral alumina / diethyl ether / 12 h / 20 °C View Scheme

1: sodium carbonate; m-chloroperbenzoic acid / CH2Cl2 / 7 h / 20 °C 2: 551 mg / active neutral alumina / diethyl ether / 12 h / 20 °C 3: 100 percent / LiAlH4 / diethyl ether / 0 - 20 °C 4: pyridine / diethyl ether / 0 - 20 °C 5: 84 percent / pyridinium chlorochromate / CH2Cl2 / 4 h / 20 °C 6: 78 percent / active neutral alumina / diethyl ether / 12 h / 20 °C 7: p-toluenesulfonic acid / benzene / 12 h / 50 °C View Scheme

1: sodium carbonate; m-chloroperbenzoic acid / CH2Cl2 / 7 h / 20 °C 2: 551 mg / active neutral alumina / diethyl ether / 12 h / 20 °C 3: 100 percent / LiAlH4 / diethyl ether / 0 - 20 °C 4: pyridine / diethyl ether / 0 - 20 °C 5: 84 percent / pyridinium chlorochromate / CH2Cl2 / 4 h / 20 °C View Scheme