1: 96 percent / hydrogen / 10percent Pd/C / ethanol / 5 h 2: 60 percent / hydrochloric acid / 1) H2O, reflux, 15 h, 2) at 235 deg C, 5 h View Scheme

ethanol; nickel; triethylamine T=100°C; P=88260.9 Torr; Hydrogenation;

Hydrogenation;