chlorine in benzene T=20°C; other solvents; Product distribution;

1: 65 percent / acetic anhydride / 3 h / 95 °C 2: 74 percent / BF3 / 1.) 0 deg C, 45 min, 2.) r.t., 30 min, 3.) 95 deg C, 12 h 3: 49 percent / triethylamine / 4.5 h / 0 °C View Scheme