1: 100 percent / H2 / PtO2 / hexane / 30 h / 760 Torr 2: 6.7 g / LAH / diethyl ether / 0.5 h / Ambient temperature 3: 98 percent / imidazole / dimethylformamide / 1 h 4: 89 percent / 0.67 h / Heating 5: TBAF / tetrahydrofuran / 24 h View Scheme

1: 100 percent / H2 / PtO2 / hexane / 30 h / 760 Torr 2: 6.7 g / LAH / diethyl ether / 0.5 h / Ambient temperature 3: 98 percent / imidazole / dimethylformamide / 1 h 4: 89 percent / 0.67 h / Heating 5: LAH / diethyl ether / 1 h 6: pyridinium chlorochromate (PCC) / CH2Cl2 / 6 h 7: HCl / diethyl ether / 0.75 h / 0 °C 8: TBAF / tetrahydrofuran / 22 h / Ambient temperature 9: 80 percent / ZnI2 / CHCl3 / 72 h / Ambient temperature 10: pyridine, DMAP / 22 h 11: NaBH4 / dimethylsulfoxide / 3 h / 85 °C 12: PhI(OOCCF3)2, H2O / ethanol / 0.17 h / Ambient temperature View Scheme