hydrogen; palladium 10 on activated carbon in methanol T=20°C; 17 h;

1: 85 percent / Et3N, (Ph3P)2PdCl2, CuI / acetonitrile / 3.5 h / 0 - 20 °C 2: 94.5 percent / H2 / 10percent Pd/C / methanol / 2585.7 Torr View Scheme

1: 4 N HCl / dioxane / 16 h / Ambient temperature 2: PdCl2(PPh3)2, CuI, Et3N / acetonitrile / 3 h / Ambient temperature 3: H2 / 5percent Pd/C / 4 h / 2068.6 Torr / Ambient temperature View Scheme