With  dihydrogen peroxide; sodium hydrogencarbonate in  methanol; dichloromethane T=37°C;  var. oxidants and their conc.;  Rate constantMechanism;   

Multi-step reaction with 8 steps 1: 95 percent / pyridine, 4-(dimethylamino)pyridine / 1.75 h / Ambient temperature2: 96 percent / NaBH4 / ethanol; dioxane / 1.5 h / Ambient temperature3: 99 percent / pyridinium p-toluenesulfonate / tetrahydrofuran / 14 h / Ambient temperature4: 93 percent / KOH / methanol / 9.5 h / Ambient temperature5: Collins reagent / CH2Cl2 / 0.5 h / Ambient temperature6: 1,5-diazabicyclo<4.3.0>non-5-ene (DBN) / CH2Cl2; methanol / 0.33 h / Ambient temperature7: 93 percent / collidine / benzene / 0.67 h / 0 °C8: 15 percent / KOH, 30percent aq. HOOH / CH2Cl2; methanol / 4 h / 4 °C