aluminium trichloride in 1,2-dichloro-ethane T=60°C; 4 h; Yield given. Yields of byproduct given;

aluminium trichloride; iodine 1.) 1,2-dichloroethane, 4 h, 60 deg C, 2.) benzene, 10 h, reflux; Yield given. Multistep reaction;