1: 70 percent / NaOAc / 3 h / 140 °C 2: 78 percent / LiAlH4 / tetrahydrofuran / 24 h / Ambient temperature 3: 90 percent / Et3N, DMAP / CH2Cl2 / 5 h / Ambient temperature 4: 90 percent / cerium(IV) ammonium nitrate / acetonitrile; H2O / 3 h / Ambient temperature 5: 84 percent / AlCl3 / CH2Cl2 / 1 h / Ambient temperature 6: 75 percent / 1 h / 100 °C 7: 95 percent / AlCl3 / CH2Cl2 / 24 h / Ambient temperature 8: 98 percent / 10percent aq. NaOH / 24 h / Ambient temperature View Scheme