1.1: trimethylsilyl trifluoromethanesulfonate / dichloromethane / 3 h / -78 °C / |Inert atmosphere 2.1: tetrahydrofuran / 6 h / |Inert atmosphere; |Cooling with ice 3.1: ozone / dichloromethane / -78 °C 3.2: 6.5 h / 20 °C 4.1: sodium tetrahydroborate / methanol / -10 °C 5.1: triethylamine; 4-(N,N-dimethlyamino)pyridine / dichloromethane 6.1: lithium borohydride / tetrahydrofuran 7.1: H2O*C2H5NO2*HOMo(O2)OMo(O3); dihydrogen peroxide / diethyl ether / 11 h / 20 °C 8.1: toluene-4-sulfonic acid / dichloromethane / 1.5 h / 20 °C 9.1: iodine / cyclohexane / 35 h / 20 °C 10.1: ruthenium trichloride; sodium periodate View Scheme