1: 97 percent / 1M aq. HCl / acetone / 1 h / Ambient temperature 2: 89 percent / NaOMe / tetrahydrofuran; methanol / 22 h / Heating 3: 1.) CeCl3 / 1.) THF, -78 deg C, 1 h, 2.) THF, 10 min 4: 100 percent / H2 / 10percent Pd/C / ethanol / 0.17 h / 1034.3 Torr / Ambient temperature 5: 76 percent / p-TsOH / nitromethane / 0.5 h / 80 °C View Scheme