1: LAH / diethyl ether / 0 - 20 °C 2: Dess-Martin periodinane / CH2Cl2 / 3 h / 20 °C 3: sodium chlorite; sodium dihydrogen phosphate; 2-methyl-2-butene / 2-methyl-propan-2-ol; H2O / 16 h / 20 °C 4: TFA / 16 h / 20 °C 5: ICl / CCl4; CH2Cl2 / 24 h / 0 - 20 °C 6: chlorotrimethylsilane; H2O; NaI / acetonitrile / 5 h / 65 °C 7: sodium hydride; LiBr / 1,2-dimethoxy-ethane; dimethylformamide / 20 h / 70 °C 8: hexamethylditin / benzene / 1.5 h / Photolysis View Scheme