1: 1.) NaBH4, CeCl3, 2.) (=NCOOC2H5)2, Ph3P / 1.) CH3OH, 0 deg C, 2.) R.T. 2: HClO4 / tetrahydrofuran; H2O / Ambient temperature 3: KOH / ethanol / 3 h / 50 °C View Scheme

Multi-step reaction with 4 steps 1: (n-Bu)4NF / 55 °C / 2 Torr2: PCC / CH2Cl2 3: (n-Bu)4NF / tetrahydrofuran4: Pd(OAc)2 / acetonitrile  

Multi-step reaction with 8 steps 1: 1.) BH3.THF, 2.) H2O2, NaOH / 1.) diglyme, 2.) H2O2: PCC / CH2Cl2 3: NaOCH3 / methanol4: 49 percent / benzene / Ambient temperature; Irradiation5: (n-Bu)4NF / 55 °C / 2 Torr6: PCC / CH2Cl2 7: (n-Bu)4NF / tetrahydrofuran8: Pd(OAc)2 / acetonitrile  

With  sodium tetrahydroborate; cerium(III) chloride in  methanol T=0°C; 0.333333 h;