3,3-dimethyldioxirane in dichloromethane; acetone T=0 - 20°C; 0.166667 h;

1: 65 percent / dimethyl dioxirane / acetone; CH2Cl2 / 1 h / 0 - 20 °C 2: 95 percent / K2CO3 / acetone / 6 h / Heating 3: 71 percent / I2; pyridine / 8 h / Heating 4: 94 percent / BBr3 / CH2Cl2 / 0.5 h / 0 °C 5: 90 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.33 h / 0 - 20 °C 6: 87 percent / K2CO3 / acetone; CH2Cl2 / 6 h / Heating 7: 80 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.17 h / 0 - 20 °C View Scheme

1: 71 percent / I2; pyridine / 8 h / Heating 2: 94 percent / BBr3 / CH2Cl2 / 0.5 h / 0 °C 3: 90 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.33 h / 0 - 20 °C 4: 87 percent / K2CO3 / acetone; CH2Cl2 / 6 h / Heating 5: 80 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.17 h / 0 - 20 °C View Scheme

1: 90 percent / BBr3 / CH2Cl2 / 0.5 h / 0 °C 2: 65 percent / dimethyl dioxirane / acetone; CH2Cl2 / 1 h / 0 - 20 °C 3: 95 percent / K2CO3 / acetone / 6 h / Heating 4: 71 percent / I2; pyridine / 8 h / Heating 5: 94 percent / BBr3 / CH2Cl2 / 0.5 h / 0 °C 6: 90 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.33 h / 0 - 20 °C 7: 87 percent / K2CO3 / acetone; CH2Cl2 / 6 h / Heating 8: 80 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.17 h / 0 - 20 °C View Scheme

1: 94 percent / BBr3 / CH2Cl2 / 0.5 h / 0 °C 2: 90 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.33 h / 0 - 20 °C 3: 87 percent / K2CO3 / acetone; CH2Cl2 / 6 h / Heating 4: 80 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.17 h / 0 - 20 °C View Scheme

1: 90 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.33 h / 0 - 20 °C 2: 87 percent / K2CO3 / acetone; CH2Cl2 / 6 h / Heating 3: 80 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.17 h / 0 - 20 °C View Scheme

1: 87 percent / K2CO3 / acetone; CH2Cl2 / 6 h / Heating 2: 80 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.17 h / 0 - 20 °C View Scheme

1: 99 percent / KOH / ethanol / 3 h / 20 °C 2: 90 percent / BBr3 / CH2Cl2 / 0.5 h / 0 °C 3: 65 percent / dimethyl dioxirane / acetone; CH2Cl2 / 1 h / 0 - 20 °C 4: 95 percent / K2CO3 / acetone / 6 h / Heating 5: 71 percent / I2; pyridine / 8 h / Heating 6: 94 percent / BBr3 / CH2Cl2 / 0.5 h / 0 °C 7: 90 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.33 h / 0 - 20 °C 8: 87 percent / K2CO3 / acetone; CH2Cl2 / 6 h / Heating 9: 80 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.17 h / 0 - 20 °C View Scheme

1: 99 percent / KOH / ethanol / 3 h / 20 °C 2: 90 percent / BBr3 / CH2Cl2 / 0.5 h / 0 °C 3: 65 percent / dimethyl dioxirane / acetone; CH2Cl2 / 1 h / 0 - 20 °C 4: 95 percent / K2CO3 / acetone / 6 h / Heating 5: 71 percent / I2; pyridine / 8 h / Heating 6: 94 percent / BBr3 / CH2Cl2 / 0.5 h / 0 °C 7: 90 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.33 h / 0 - 20 °C 8: 87 percent / K2CO3 / acetone; CH2Cl2 / 6 h / Heating 9: 80 percent / dimethyl dioxirane / acetone; CH2Cl2 / 0.17 h / 0 - 20 °C View Scheme

potassium carbonate in acetone 1 h; Heating;