1: 95 percent / activated iron, hydrogen chloride / benzene 2: 1.) sodium nitrite, concenrated sulfuric acid; 2.) potassium iodide 3: 0.205 g / copper powder / 3 h / 260 - 270 °C View Scheme

1: 95 percent / activated iron, hydrogen chloride / benzene 2: 1.) sodium nitrite, concenrated sulfuric acid; 2.) potassium iodide 3: 57.6 percent / copper powder / 3 h / 180 - 220 °C View Scheme

1: 95 percent / activated iron, hydrogen chloride / benzene 2: 1.) sodium nitrite, concenrated sulfuric acid; 2.) potassium iodide View Scheme

hydrogenchloride; iron in benzene