in dimethyl sulfoxide T=20°C;

1: 75 percent / dimethylsulfoxide / 1 h / Ambient temperature 2: 70 percent / acetic anhydride / dimethylsulfoxide / 60 °C 3: 80 percent / dimethylsulfoxide / 20 °C View Scheme

1: 70 percent / acetic anhydride / dimethylsulfoxide / 60 °C 2: 80 percent / dimethylsulfoxide / 20 °C View Scheme

chloroform; chlorine Irradiation.500-Watt-Lampe;