1: 39.4 percent / aq.KOH / methanol / 3 h / Ambient temperature 2: 1.) LiAlH4, 2.) DDQ / 1.) benzene, ether, reflux, 30 min, 2.) dioxane, room temperature, 40 h 3: 81.3 percent / pyridine / 18.5 h 4: 83.8 percent / pyridinium chlorochromate / CH2Cl2 / 2 h 5: 10 percent / trimethyl orthoformate, O2, toluene-p-sulphonic acid / dioxane 6: 39.8 percent / ethanol / 2.5 h / Irradiation 7: 75 percent / H2 / Pd-CaCO3 / pyridine 8: 28.5 mg / potassium hydrogen carbonate, H2O / ethanol / 1 h / Heating 9: 28 mg / HCl / 18 h / Ambient temperature 10: POCl3-pyridine 11: 60percent acetic acid / 91 h / Ambient temperature 12: 1 mg / H2 / Pd-C / dioxane / 6 h View Scheme