1: 90 percent / H2, 1.6percent H2SO4 / 10percent Pd/C / acetic acid / 7 h / 30002.4 Torr / Ambient temperature 2: 95 percent / K2CO3, 25percent ethylmethylphosphinic anhydride / H2O; CH2Cl2 3: H2 / 10percent Pd/C / methanol / 0.5 h / 750.06 - 3750.3 Torr / Ambient temperature View Scheme

sulfuric acid; hydrogen; palladium on activated charcoal in acetic acid T=25 - 30°C; P=760 Torr;