hydrogen bromide; aniline T=100°C;

sodium hydroxide; palladium on activated charcoal Hydrogenation;

1: 82 percent / aniline, 47percent HBr / H2O / 4 h / 100 °C 2: chlorotrimethylsilane / 3 h / Heating 3: SnCl4 / 1,2-dichloro-ethane / 18 h / Ambient temperature 4: 80 percent / H2 / 5percent Pd/C / acetic acid / 5 h / 760 Torr / Ambient temperature View Scheme

hydrogen bromide T=200°C; Erhitzen des Reaktionsprodukts mit Phosphorylbromid auf 160grad;

silver carbonate in dichloromethane T=20°C; 120 h;