1: 72 percent / HNO3, H2SO4, SO3 / 1 h / Heating 2: 87 percent / PCl5, POCl3 / 6 h / 130 - 140 °C 3: ethanol / 5 h / Heating 4: H2 / 5percent Pd/C / aq. ethanol / 2327.2 Torr 5: HCl / ethanol / 1.) 25 deg C, 5 h, 2.) reflux, 1.5 h 6: K3Fe(CN)6, conc. NH4OH / H2O / 0.05 h / pH 8 View Scheme

1: 87 percent / PCl5, POCl3 / 6 h / 130 - 140 °C 2: ethanol / 5 h / Heating 3: H2 / 5percent Pd/C / aq. ethanol / 2327.2 Torr 4: HCl / ethanol / 1.) 25 deg C, 5 h, 2.) reflux, 1.5 h 5: K3Fe(CN)6, conc. NH4OH / H2O / 0.05 h / pH 8 View Scheme

1: ethanol / 5 h / Heating 2: H2 / 5percent Pd/C / aq. ethanol / 2327.2 Torr 3: HCl / ethanol / 1.) 25 deg C, 5 h, 2.) reflux, 1.5 h 4: K3Fe(CN)6, conc. NH4OH / H2O / 0.05 h / pH 8 View Scheme