ammonia; hydrogen; palladium on activated charcoal in ethanol T=45°C; Catalytic hydrogenation; P=2280 Torr; 8 h;

1: 65 percent / phosphorus oxychloride; phosphorus pentachloride / 3 h / 120 - 130 °C 2: 65 percent / sodium hydride / dimethylformamide / 4 h / 20 °C 3: 56 percent / H2; NH3 / palladium on charcoal / ethanol / 8 h / 45 °C / 2280 Torr View Scheme

1: 65 percent / sodium hydride / dimethylformamide / 4 h / 20 °C 2: 56 percent / H2; NH3 / palladium on charcoal / ethanol / 8 h / 45 °C / 2280 Torr View Scheme