1: 76 percent / LiBH4 / tetrahydrofuran / 5 - 10 °C 2: 73 percent / H5IO6 / tetrahydrofuran / 0.17 h 3: 75 percent / CHCl3 / 1 h / Ambient temperature 4: H2 / 5percent Pd/C / ethanol 5: HCl / ethanol 6: 73 percent / PCC 7: 61 percent / Me3Al, Zn / tetrahydrofuran; hexane / 1 h / 0 °C 8: 95 percent / H2 / 5percent Pd/C / ethanol 9: 89 percent / aq. NaOH / ethanol / 4 h / Heating 10: 81 percent / 30percent NH3 / 1 h / 180 - 200 °C 11: 85 percent / 63percent HNO3, conc. H2SO4 / -10 °C View Scheme

1: 76 percent / LiBH4 / tetrahydrofuran / 5 - 10 °C 2: 73 percent / H5IO6 / tetrahydrofuran / 0.17 h 3: 75 percent / CHCl3 / 1 h / Ambient temperature 4: H2 / 5percent Pd/C / ethanol 5: HCl / ethanol 6: 73 percent / PCC 7: 61 percent / Me3Al, Zn / tetrahydrofuran; hexane / 1 h / 0 °C 8: 95 percent / H2 / 5percent Pd/C / ethanol 9: 89 percent / aq. NaOH / ethanol / 4 h / Heating 10: 81 percent / 30percent NH3 / 1 h / 180 - 200 °C 11: 85 percent / 63percent HNO3, conc. H2SO4 / -10 °C 12: 94 percent / H2 / 5percent Pd/C / ethanol View Scheme