Summary
We show the presence of an ether group in alkoxy radicals significantly lowers the activation energy of the b-C-H dissociation and only slightly increases the isomerization barrier. Moreover, an 1-6 isomerization mechanism involving a 7-membered transition state may compete with the usual 1-5 isomerization.
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Thiriot, E., Canneaux, S., Hénon, E. et al. Theoretical study of the reactivity of hydrocarbon and oxygenated alkoxy radicals: comparison of the isomerization and the b-c-h bond dissociation pathways. React Kinet Catal Lett 85, 123–129 (2005). https://doi.org/10.1007/s11144-005-0251-0
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DOI: https://doi.org/10.1007/s11144-005-0251-0