Reactions of cyclic alkyl radicals. Part 3.—Kinetics of decomposition of bi-cyclopropylformyl peroxide

Abstract

The thermal decomposition of bicyclopropylformyl peroxide in p-cymene solution has been studied in the temperature range 70–113°C. Values of log A(sec^–1)= 14.05 and E(kcal mole^–1)= 29.8 have been obtained for the Arrhenius parameters for the decomposition reaction: [graphic omitted].

Cyclopropyl radicals are generated by the subsequent decarboxylation of the cyclopropylcarboxyl radicals and dimerize forming bicyclopropyl, and to react by hydrogen atom abstraction with the solvent with an estimated activation energy of 7.3 kcal mole^–1.