1: 95 percent / H2 / 5percent Pd/C / ethanol 2: 89 percent / aq. NaOH / ethanol / 4 h / Heating 3: 81 percent / 30percent NH3 / 1 h / 180 - 200 °C 4: 85 percent / 63percent HNO3, conc. H2SO4 / -10 °C View Scheme

1: 95 percent / H2 / 5percent Pd/C / ethanol 2: 89 percent / aq. NaOH / ethanol / 4 h / Heating 3: 81 percent / 30percent NH3 / 1 h / 180 - 200 °C 4: 85 percent / 63percent HNO3, conc. H2SO4 / -10 °C 5: 94 percent / H2 / 5percent Pd/C / ethanol View Scheme