sodium dihydrogenphosphate in gas T=220 - 270°C; P=0.01 Torr;

1: diisobutylaluminum hydride / hexane; heptane / 3 h / -72 °C 2: p-TosOH / 30 h / Ambient temperature 3: 1) Mg / 1) THF, room temperature, 2) THF, room temperature, 3 h 4: 70 percent / NaH2PO4 / gas / 220 - 270 °C / 0.01 Torr View Scheme

1: p-TosOH / 30 h / Ambient temperature 2: 1) Mg / 1) THF, room temperature, 2) THF, room temperature, 3 h 3: 70 percent / NaH2PO4 / gas / 220 - 270 °C / 0.01 Torr View Scheme

1: 1) Mg / 1) THF, room temperature, 2) THF, room temperature, 3 h 2: 70 percent / NaH2PO4 / gas / 220 - 270 °C / 0.01 Torr View Scheme

View Scheme