3-chloro-benzenecarboperoxoic acid in dichloromethane T=0°C; 14 h;

1: 90 percent / sodium periodate / methanol; H2O / 2 h / 0 °C 2: 80 percent / acetic anhydride, methanesulphonic acid / CH2Cl2 / 24 h / Ambient temperature 3: 95 percent / m-chloroperbenzoic acid / CH2Cl2 / 2 h / -78 °C View Scheme

1: 75 percent / pyrolysis by bulb-to-bulb distillation 2: 95 percent / m-CPBA / CH2Cl2 / 14 h / 0 °C View Scheme

1: N(C2H5)3 / diethyl ether / 24 h / Heating 2: SO2Cl2 / 0 °C 3: 75 percent / pyrolysis by bulb-to-bulb distillation 4: 95 percent / m-CPBA / CH2Cl2 / 14 h / 0 °C View Scheme

1: N(C2H5)3 / diethyl ether / 24 h / Heating 2: SO2Cl2 / 0 °C 3: 75 percent / pyrolysis by bulb-to-bulb distillation 4: 95 percent / m-CPBA / CH2Cl2 / 14 h / 0 °C View Scheme

1: 80 percent / acetic anhydride, methanesulphonic acid / CH2Cl2 / 24 h / Ambient temperature 2: 95 percent / m-chloroperbenzoic acid / CH2Cl2 / 2 h / -78 °C View Scheme

1: 81 percent / ethanol / 6 h / Heating 2: 90 percent / sodium periodate / methanol; H2O / 2 h / 0 °C 3: 80 percent / acetic anhydride, methanesulphonic acid / CH2Cl2 / 24 h / Ambient temperature 4: 95 percent / m-chloroperbenzoic acid / CH2Cl2 / 2 h / -78 °C View Scheme