1: 72 percent / HNO3, H2SO4, SO3 / 1 h / Heating 2: 87 percent / PCl5, POCl3 / 6 h / 130 - 140 °C 3: 77 percent / N2H4*H2O / ethanol / 1.) 0 deg C, 0.75 h, 2.) 25 deg C, 3.5 h 4: 4.9 g / H2 / 5percent Pd/C / aq. ethanol 5: 7.1 g / conc. HCl / 2.5 h 6: K3Fe(CN)6, conc. NH4OH / H2O / 0.03 h View Scheme

1: 4.9 g / H2 / 5percent Pd/C / aq. ethanol 2: 7.1 g / conc. HCl / 2.5 h 3: K3Fe(CN)6, conc. NH4OH / H2O / 0.03 h View Scheme

1: 87 percent / PCl5, POCl3 / 6 h / 130 - 140 °C 2: 77 percent / N2H4*H2O / ethanol / 1.) 0 deg C, 0.75 h, 2.) 25 deg C, 3.5 h 3: 4.9 g / H2 / 5percent Pd/C / aq. ethanol 4: 7.1 g / conc. HCl / 2.5 h 5: K3Fe(CN)6, conc. NH4OH / H2O / 0.03 h View Scheme

1: 77 percent / N2H4*H2O / ethanol / 1.) 0 deg C, 0.75 h, 2.) 25 deg C, 3.5 h 2: 4.9 g / H2 / 5percent Pd/C / aq. ethanol 3: 7.1 g / conc. HCl / 2.5 h 4: K3Fe(CN)6, conc. NH4OH / H2O / 0.03 h View Scheme

ammonium hydroxide; potassium hexacyanoferrate(III) in water 0.0333333 h; Yield given;