1: H2, Et3N / 10percent Pd/C / methanol / 0.33 h / Ambient temperature 2: 34 percent / H2O, N-bromosuccinimide (NBS) / CHCl3 / 3 h / Ambient temperature View Scheme

hydrogen; 10 palladium on active carbon in methanol 24 h; Ambient temperature;

triethylamine; palladium on activated charcoal