1: 43 percent / H2SO4, fuming HNO3 / 6 h / 90 °C 2: 97 percent / H2, gl. AcOH / 10percent Pd/C / 18 h / 60 °C / 2585.7 Torr 3: 50 percent / Na2CO3 / acetone / 2 h / Ambient temperature 4: 90 percent / lithium aluminum hydride / tetrahydrofuran / 1 h / Heating 5: 5 percent / H2SO4, fuming HNO3 / 3 h / Ambient temperature 6: H2 / 10percent Pd/C / ethanol / 18 h / 2585.7 Torr 7: 14 percent / ethanol / 18 h / 120 °C View Scheme

1: H2 / 10percent Pd/C / ethanol / 18 h / 2585.7 Torr 2: 14 percent / ethanol / 18 h / 120 °C View Scheme

in ethanol T=120°C; 18 h;