trichlorophosphate T=60 - 80°C; 3 h;

1: 60 percent / POCl3 / 3 h / 60 - 80 °C 2: 95 percent / ammonium acetate / 2 h / Heating 3: 80 percent / LiAlH4 / tetrahydrofuran / 10 h / Heating 4: 80 percent / H2 / Pd/C / tetrahydrofuran View Scheme