1: 91.4 percent / K2CO3 / dimethylformamide / 66 h / 60 °C 2: 82.4 percent / meta-chloroperbenzoic acid; disodium phosphate / CH2Cl2 / 20 °C 3: 12.56 g / NaOH / methanol; H2O / 2 h / 60 °C 4: 92.7 percent / lithium hydroxide monohydrate / tetrahydrofuran / 3 h / Heating 5: 84.4 percent / H2 / Pd/C / ethanol / 16 h / 1965.16 Torr View Scheme