1: 68 percent / 50percent NaOH / ethanol / 16 h 2: tetrahydrofuran / 16 h / Ambient temperature 3: 480 mg / Ce(NH4)2(NO3)6 / acetonitrile; H2O / 1 h / Ambient temperature View Scheme

1: 68 percent / 50percent NaOH / ethanol / 16 h 2: tetrahydrofuran / 16 h / Ambient temperature 3: 480 mg / Ce(NH4)2(NO3)6 / acetonitrile; H2O / 1 h / Ambient temperature 4: 1) H2, 2) conc. HCl / 1) 10percent Pd/C / 1) MeOH, 760 Torr, 2) 50 deg C, 2h View Scheme