Cyclic ethers were found to add to tetrachloroethylene with r-ray irradiation and to produece saturated and unsaturated 1:1-adducts which contain CHC12-CC12-and CCI2=QC1-groups, respectively. The effects of does rate, total does, temperature and structure of reactant on the reaction mode were studied.
G valuesof adducts change in the following order:tetrahydrofuran oxetane 1, 3-dioxlane tetrahydropyran p-dioxane.p-Dioxane gives mainly unsaturated 1:1-adduct; on the other hand, 1, 3-dioxolane gives mainly saturated 1;1-adduct. These adducts wereproduced with the reactoin rates independent of the does rate.Apparent activatoin energies are estimated in the cases of some cyclic ethers. The addition reaction of this type was found to proceed with organic peroxide catalysts.