hydrogen; palladium on activated charcoal in methanol; water T=65 - 70°C; P=15200 Torr;

1: 73.9 percent / H2 / 10percent palladium on charcoal / methanol; H2O / 65 - 70 °C / 15200 Torr 2: 80.9 percent / 47percent HBr / 2.5 h / Heating 3: 83.4 percent / conc. HCl / 0.33 h / 70 - 80 °C View Scheme