1: 85 percent / Jones' reagent 2: 63 percent / NaOEt / ethanol / -10 °C 3: 56 percent / 3-chloroperbenzoic acid (80percent) / CH2Cl2 / Ambient temperature 4: 40 percent / triethyl phosphite / tetrahydrofuran / 12 h / Ambient temperature 5: toluene / 2 h / Heating View Scheme

1: LiAlH4 2: 85 percent / Jones' reagent 3: 63 percent / NaOEt / ethanol / -10 °C 4: 56 percent / 3-chloroperbenzoic acid (80percent) / CH2Cl2 / Ambient temperature 5: 40 percent / triethyl phosphite / tetrahydrofuran / 12 h / Ambient temperature 6: toluene / 2 h / Heating View Scheme

1: 63 percent / NaOEt / ethanol / -10 °C 2: 56 percent / 3-chloroperbenzoic acid (80percent) / CH2Cl2 / Ambient temperature 3: 40 percent / triethyl phosphite / tetrahydrofuran / 12 h / Ambient temperature 4: toluene / 2 h / Heating View Scheme

in toluene 2 h; Heating;