Reactions of oxygenated radicals in the gas phase. Part 7. Reactions of methylperoxyl radicals and alkenes

The reactions of methylperoxyl radicals with alkenes have been studied between 373 and 403 K. The peroxyl radicals were generated by the oxidation of di-t-butyl peroxide. Arrhenius parameters for reaction (18) have been CH3O2·+CC→ [graphic omitted] + CH3O·(18) determined for 2-methylbut-1-ene, 2-methylbut-2-ene, and 2,3-dimethylbut-2-ene. They are log(A18/dm3 mol–1 s–1)= 8.60 ± 0.72,8.16 ± 0.49, and 8.14 ± 0.32, and E18= 52.8 ± 5.4, 42.4 ± 3.6, and 36.4 ± 2.8 kJ mol–1, respectively.