1.1: CH2Cl2 / 20 h / 0 °C 2.1: 0.58 g / toluene / 2 h / Heating 3.1: OsO4 / tetrahydrofuran; H2O / 0.08 h 4.1: 0.65 g / sodium metaperiodate / tetrahydrofuran; H2O / 2.5 h 5.1: BuLi / hexane; tetrahydrofuran / 0.25 h / cooling 5.2: 60 percent / tetrahydrofuran; hexane / 0.25 h 6.1: 98 percent / H2 / chlorotris(triphenylphosphine)rhodium(I) / benzene; ethanol / 12 h 7.1: 83 percent / AcCl / methanol; CH2Cl2 / 2 h / 20 °C View Scheme