although the greater selectivity at higher temperatures would not necessarily be expected.General. The reactivities of the alkanes in telomerization with tetrafluoroethylene at 125 °C are all nearly the same.The trend of change in the linear alkanes is the same as that observed for photochlorination21 and for benzoyl peroxide catalyzed chlorination with 2,4,6-trichloro-N-chloroacetanilide.22 The reactivity of the cycloalkanes is less than that expected on the basis of the chlorination results with 2,4,6-trichloro-iV-chloroacetanilide but about the same as expected from the reactivity with methyl radicals23,24 and from chlorination with trichloromethanesulfenyl chloride.25 The comparison of these results is given in Table II.References and Notes (1)