1: trifluorormethanesulfonic acid; 3-iodo-α,α,α-trifluorotoluene With 3-chloro-benzenecarboperoxoic acid in dichloromethane T=20°C; 2 h; Inert atmosphere; 2: 1,3,5-trimethyl-benzene in dichloromethane T=0 - 20°C; Inert atmosphere;