in chloroform 1.) reflux, 1 h; 2.) room temp., 22 h.;

1: 8 percent / N-chlorosuccinimide / CHCl3 / 48 h / Heating 2: 95 percent / toluene / 0.67 h / 8 - 10 °C 3: 79 percent / CHCl3 / 1.) reflux, 1 h; 2.) room temp., 22 h. View Scheme

1: 95 percent / toluene / 0.67 h / 8 - 10 °C 2: 79 percent / CHCl3 / 1.) reflux, 1 h; 2.) room temp., 22 h. View Scheme