hydrogenchloride; hydrogen; palladium on activated charcoal in methanol T=60°C; P=3420 Torr; 4 h;

1: 94 percent / 2N aq. HCl, H2 / 5percent Pd/C / methanol / 4 h / 60 °C / 3420 Torr 2: 70 percent / triethylamine / 1,2-dimethoxy-ethane / 20 h / Ambient temperature View Scheme