1: 85 percent / H2 / 5percent Pd/C / tetrahydrofuran / 50 - 60 °C / 2585.7 Torr 2: NaOH / H2O / 12 h / Ambient temperature 3: 48 h / Heating View Scheme

1: 1.) NaH / 1.) DMF, 2.) DMF, 60 deg, 18 h 2: 85 percent / H2 / 5percent Pd/C / tetrahydrofuran / 50 - 60 °C / 2585.7 Torr 3: NaOH / H2O / 12 h / Ambient temperature 4: 48 h / Heating View Scheme

1: NaOH / H2O / 12 h / Ambient temperature 2: 48 h / Heating View Scheme

48 h; Heating; Yield given;