naphthalene; W-2 Raney nickel T=200°C; 3 h;

1: 98 percent / ammonium acetate / acetic acid / 2 h / Heating 2: lithium aluminium hydride / tetrahydrofuran / 2.5 h / Heating 3: 98 percent / triethylamine / CH2Cl2 / 0.17 h / 0 °C 4: 96 percent / phosphoryl chloride / acetonitrile / 0.75 h / Heating 5: 65 percent / W-2 Raney nickel, naphthalene / 3 h / 200 °C View Scheme

1: 98 percent / triethylamine / CH2Cl2 / 0.17 h / 0 °C 2: 96 percent / phosphoryl chloride / acetonitrile / 0.75 h / Heating 3: 65 percent / W-2 Raney nickel, naphthalene / 3 h / 200 °C View Scheme

1: lithium aluminium hydride / tetrahydrofuran / 2.5 h / Heating 2: 98 percent / triethylamine / CH2Cl2 / 0.17 h / 0 °C 3: 96 percent / phosphoryl chloride / acetonitrile / 0.75 h / Heating 4: 65 percent / W-2 Raney nickel, naphthalene / 3 h / 200 °C View Scheme

1: 96 percent / phosphoryl chloride / acetonitrile / 0.75 h / Heating 2: 65 percent / W-2 Raney nickel, naphthalene / 3 h / 200 °C View Scheme