1: 82 percent / DIBAL / light petroleum; toluene; hexane / 1 h / -78 °C 2: 76 percent / H2 / 10percent Pd/C / methanol / 7 h / 760 Torr / Ambient temperature 3: 82 percent / NaHCO3 / aq. ethanol 4: 95 percent / 80percent aq. AcOH / 120 h / Ambient temperature 5: 79 percent / aq. NaIO4 / methanol / 2 h 6: 88 percent / NaBH4 / methanol / 0.5 h View Scheme

1: 82 percent / DIBAL / light petroleum; toluene; hexane / 1 h / -78 °C 2: 76 percent / H2 / 10percent Pd/C / methanol / 7 h / 760 Torr / Ambient temperature 3: 82 percent / NaHCO3 / aq. ethanol 4: 95 percent / 80percent aq. AcOH / 120 h / Ambient temperature 5: 79 percent / aq. NaIO4 / methanol / 2 h 6: 88 percent / aq. NaClO2, Na2HPO4 / various solvent(s) / 1 h View Scheme

1: 82 percent / DIBAL / light petroleum; toluene; hexane / 1 h / -78 °C 2: 76 percent / H2 / 10percent Pd/C / methanol / 7 h / 760 Torr / Ambient temperature 3: 82 percent / NaHCO3 / aq. ethanol 4: 95 percent / 80percent aq. AcOH / 120 h / Ambient temperature 5: 79 percent / aq. NaIO4 / methanol / 2 h 6: 88 percent / aq. NaClO2, Na2HPO4 / various solvent(s) / 1 h 7: 96 percent / H2 / 10percent Pd/C / methanol / 5 h / 760 Torr View Scheme