hydrogen; triethylamine; cobalt in methanol T=100°C; P=51714.8 Torr;

1: 79 percent / Et3N, <(C6H5)3P>2PdCl2, cuprous iodide / CH2Cl2 / 12 h / Heating 2: 82 percent / H2 / 10percent Pd/C / propan-2-ol / 48 h / 760 Torr 3: 63 percent / Et3N, H2 / Raney cobalt / methanol / 100 °C / 51714.8 Torr View Scheme

1: 79 percent / Et3N, <(C6H5)3P>2PdCl2, cuprous iodide / CH2Cl2 / 12 h / Heating 2: 82 percent / H2 / 10percent Pd/C / propan-2-ol / 48 h / 760 Torr 3: 63 percent / Et3N, H2 / Raney cobalt / methanol / 100 °C / 51714.8 Torr View Scheme

1: 82 percent / H2 / 10percent Pd/C / propan-2-ol / 48 h / 760 Torr 2: 63 percent / Et3N, H2 / Raney cobalt / methanol / 100 °C / 51714.8 Torr View Scheme