ammonia; sodium; iron nitrate (III) in diethyl ether T=-78°C; 1 h;

1: 84 percent / potassium carbonate / 1,2-dichloro-benzene / 72 h / 170 °C 2: 73 percent / iron(III) nitrate nonahydrate; Na; NH3 / diethyl ether / 1 h / -78 °C View Scheme