1: H2, aq. HCl / 10 percent Pd/C / 5 h / 50 °C / 3750.3 Torr 2: 29 percent / PPh3, Et3N, CCl4 / acetonitrile / 15 h / Ambient temperature 3: 92 percent / 1N NaOH / ethanol / 4 h / 60 °C View Scheme

hydrogenchloride; hydrogen; palladium on activated charcoal T=50°C; P=3750.3 Torr; 5 h; Yield givenYields of byproduct given. Title compound not separated from byproducts;

1: H2, aq. HCl / 10 percent Pd/C / 5 h / 50 °C / 3750.3 Torr 2: 29 percent / PPh3, Et3N, CCl4 / acetonitrile / 15 h / Ambient temperature View Scheme