1: bis(tricyclohexylphosphine)benzylideneruthenium(IV)dichlorid 2: H2 / PtO2 3: Bu3P; Py 4: NaH 5: H2O2 / H2O 6: CaCO3 / diphenyl ether / Heating 7: OsO4; NMO / H2O; tetrahydrofuran 8: Py 9: K2CO3 / methanol 10: 61 percent / KOH / methanol 11: 93 percent / HCl / H2O / Heating View Scheme