1: 1.) EtONa / 1.) ethanol, 10 min, 2.) ethanol, 2 h 2: H2 / 10 percent Pd/C / dimethylformamide / 3102.9 Torr 3: I2 / ethanol / 0.5 h / Heating 4: 4 N NaOH / methanol; H2O / 1 h / Ambient temperature View Scheme

1: H2 / 10 percent Pd/C / dimethylformamide / 3102.9 Torr 2: I2 / ethanol / 0.5 h / Heating 3: 4 N NaOH / methanol; H2O / 1 h / Ambient temperature View Scheme

sodium hydroxide in methanol; water 1 h; Ambient temperature;