1.1: KHMDS / toluene / 0.08 h / 0 °C 1.2: 2.76 g / toluene / 3 h / 0 - 20 °C 2.1: 88.2 percent / p-toluenesulfonic acid monohydrate / 72 h / 105 °C 3.1: 98 percent / triethylamine / tetrahydrofuran / 24 h / 20 °C 4.1: 95.2 percent / benzylidene-bis(tricyclohexylphosphine)dichlororuthenium / CH2Cl2 / 20 h / Heating 5.1: 74.2 percent / sodium hydride; tetrabutylammonium iodide / tetrahydrofuran / 48 h / 20 °C 6.1: 88.1 percent / trifluoroacetic acid; anisole / CH2Cl2 / 1.5 h / 20 °C 7.1: triphenylphosphine; carbon tetrabromide / CH2Cl2 / 0.17 h / 0 °C 7.2: 73.7 percent / triethylamine / CH2Cl2 / 120 h / 4 °C 8.1: hydroquinine 1,4-phthalazinediyl diether; K3Fe(CN)6; K2OsO4*2H2O / K2CO3; methanesulfonamide / H2O; 2-methyl-propan-2-ol / 168 h / 4 °C 9.1: 60 mg / p-toluenesulfonic acid / CH2Cl2 / 3 h / 20 °C 10.1: 100 percent / H2; palladium(II) chloride / methanol / 0.5 h / 20 °C 11.1: 94.3 percent / hydrochloric acid / H2O; tetrahydrofuran / 20 h / 20 °C View Scheme