Multi??faceted Reactivity of Alkyltellurophenols Towards Peroxyl Radicals: Catalytic Antioxidant Versus Thiol??Depletion Effect

…, K Bakhtiari, M Saeedi, L Engman

Index: Amorati, Riccardo; Valgimigli, Luca; Diner, Peter; Bakhtiari, Khadijeh; Saeedi, Mina; Engman, Lars Chemistry - A European Journal, 2013 , vol. 19, # 23 p. 7510 - 7522

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Citation Number: 24

Abstract

Abstract Hydroxyaryl alkyl tellurides are effective antioxidants both in organic solution and aqueous biphasic systems. They react by an unconventional mechanism with ROO. radicals with rate constants as high as 10 7 M− 1 s− 1 at 303 K, outperforming common phenols. The reactions proceed by oxygen atom transfer to tellurium followed by hydrogen atom transfer to the resulting RO. radical from the phenolic OH. The reaction rates do not reflect the ...