1: palladium 10 on activated carbon; hydrogen / tetrahydrofuran; ethanol / 8 h / 760.05 Torr 2: potassium carbonate / N,N-dimethyl-formamide / 8 h / 20 °C / Inert atmosphere 3: hydrogenchloride / diethyl ether; dichloromethane; water / 0 - 25 °C View Scheme