1: 39 percent / stannic chloride / CH2Cl2 / 22 h 2: 4.5 g / NaOH / ethanol / 14 h / Ambient temperature View Scheme

1: 39 percent / stannic chloride / CH2Cl2 / 22 h 2: 4.5 g / NaOH / ethanol / 14 h / Ambient temperature View Scheme

1: acetic anhydride / Heating 2: 76 percent / benzene / Heating 3: 50 percent / hydrogen / 10percent Pd-C / acetic acid / 50 °C 4: 61 percent / Pb(OAc)4 / tetrahydrofuran / 20 °C 5: 65 percent / lithium triethylborohydride / tetrahydrofuran / -20 °C 6: 63 percent / HCl / H2O; tetrahydrofuran 7: 75 percent / ZnCl2, molecular sieves / tetrahydrofuran View Scheme