1: 1.) ICl; 2.) aq. KF / 1.) CCl4, 15 min; 2.) DMSO, RT, 4 h 2: (Ph3P)4Pd / tetrahydrofuran / Ambient temperature View Scheme

aluminium trichloride; iodine in dichloromethane T=0°C; 1 h; Yield given. Yields of byproduct given;