N-chloro-succinimide; 2,2'-azo-bisisobutyronitrile in tetrachloromethane; acetic acid T=60°C; Irradiationchlorinated reagent was added during 8 h;

1: 24 g / dimethyl sulphate / H2O / 5 h / 80 °C 2: sodium hydroxide, water / 4 h / Heating 3: 70 percent / hydrogen chloride (gas) / 4 h / Heating 4: N-chlorosuccinimide, azobisisobutyronitrile / acetic acid; CCl4 / 60 °C / Irradiation; chlorinated reagent was added during 8 h View Scheme

1: sodium hydroxide, water / 4 h / Heating 2: 70 percent / hydrogen chloride (gas) / 4 h / Heating 3: N-chlorosuccinimide, azobisisobutyronitrile / acetic acid; CCl4 / 60 °C / Irradiation; chlorinated reagent was added during 8 h View Scheme

1: 70 percent / hydrogen chloride (gas) / 4 h / Heating 2: N-chlorosuccinimide, azobisisobutyronitrile / acetic acid; CCl4 / 60 °C / Irradiation; chlorinated reagent was added during 8 h View Scheme