N-chloro-succinimide in N,N-dimethyl-formamide T=70°C; 1 h;

1: 94 percent / H2, AcOH / 10percent Pd/C / ethanol; H2O / 50 °C / 760 Torr 2: 90 percent / methanol; CHCl3 / 4 h / Ambient temperature 3: 91 percent / N-chlorosuccinimide / dimethylformamide / 1 h / 70 °C View Scheme

1: 90 percent / methanol; CHCl3 / 4 h / Ambient temperature 2: 91 percent / N-chlorosuccinimide / dimethylformamide / 1 h / 70 °C View Scheme