1: hydrogen; palladium 10 on activated carbon / methanol; ethyl acetate; acetic acid / 3 h / 20 °C 2: hydrogenchloride / methanol; water / 6 h / 30 °C 3: Jone's reagent / acetone; dichloromethane / 0.5 h / 0 °C 4: potassium hydroxide; water / methanol / 16 h / 30 °C 5: perchloric acid / water / 1 h / 20 °C 6: 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione; trifluoroacetic acid / dimethyl sulfoxide / 40 h / 40 °C 7: water; sodium hydroxide / 0.5 h View Scheme