Abstract The reduction of C Cl bonds in (2, 2-dichloro-1, 1, 2-tri-fluoroethyl) trichloromethylether (I), dichloromethyl (2, 2-dichloro-1, 1, 2-trifluoroethyl) ether (II) and (2- chloro-1, 1, 2-trifluoroethyl) trichloromethylether (III) by means of alcohols (ethanol, 2- propanol, 2-butanol, 3-pentanol, cyclohexanol) as well as ethers (1, 3-dioxolane, tetrahydrofurane, diethylether) under ultraviolet and γ-60 Co irradiation were studied. ...