triethylamine; palladium diacetate T=120°C; 24 h;

1: 1.) sodium nitrite, HCl; 2.) KI / 1.) 0 deg C, H2O; 2.) H2O, 30 min at RT then 30 min at 60 deg C 2: Et3N / Pd(OAc)2 / 24 h / 120 °C View Scheme

ammonia in ethanol T=180°C; 24 h;