1: Dess-Martin periodinane 2: 99 percent / Dess-Martin periodinane 3: 74 percent / n-BuLi 4: DIBAL-H 5: Dess-Martin periodinane 6: 67 percent / Li(i-Pr)2N / -78 °C 7: 79 percent / Cl2CHCO2H 8: Dess-Martin periodinane 9: NaClO2 10: MgBr2; n-BuSH; K2CO3 11: 62 percent / 2,4,6-trichlorobenzoyl chloride; DMAP 12: 91 percent / CF3CO2H / CH2Cl2 13: DMDO / -50 °C View Scheme

1: Dess-Martin periodinane 2: 99 percent / Dess-Martin periodinane 3: 74 percent / n-BuLi 4: DIBAL-H 5: Dess-Martin periodinane 6: 67 percent / Li(i-Pr)2N / -78 °C 7: 79 percent / Cl2CHCO2H 8: Dess-Martin periodinane 9: NaClO2 10: MgBr2; n-BuSH; K2CO3 11: 62 percent / 2,4,6-trichlorobenzoyl chloride; DMAP 12: 91 percent / CF3CO2H / CH2Cl2 View Scheme