1: 80 percent / H2 / 10percent Pd/C / methanol / 3 h / 15001.2 Torr 2: 51 percent / NaIO4, RuCl3 / acetonitrile; CCl4; H2O / 1.5 h / Ambient temperature 3: 70 percent / 6 M aq. HCl / 3 h / Heating View Scheme