1: in tetrahydrofuran T=-40°C; 0.666667 h; 2: With hydrogenchloride in tetrahydrofuran T=0°C; 1 h;

hydrogenchloride in tetrahydrofuran; diethyl ether

1.1: hydrogen / palladium 10 on activated carbon / 12 h / 25 °C / 760.05 Torr 2.1: triethylamine / tetrahydrofuran / 0.17 h / 0 °C 2.2: 0.42 h / 0 - 20 °C 2.3: 1 h / 20 °C / pH 2 3.1: trichlorophosphate / 1 h / 120 °C View Scheme