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• W2337752485 startingPage "453" @default.
• W2337752485 abstract "Iron(III)–hydroperoxo complexes are found in various nonheme iron enzymes as catalytic cycle intermediates; however, little is known on their catalytic properties. The recent work of Banse and co-workers on a biomimetic nonheme iron(III)–hydroperoxo complex provided evidence of its involvement in reactivity with arenes. This contrasts the behavior of heme iron(III)–hydroperoxo complexes that are known to be sluggish oxidants. To gain insight into the reaction mechanism of the biomimetic iron(III)–hydroperoxo complex with arenes, we performed a computational (density functional theory) study. The calculations show that iron(III)–hydroperoxo reacts with substrates via low free energies of activation that should be accessible at room temperature. Moreover, a dominant ketone reaction product is observed as primary products rather than the thermodynamically more stable phenols. These product distributions are analyzed and the calculations show that charge interaction between the iron(III)–hydroxo group and the substrate in the intermediate state pushes the transferring proton to the meta-carbon atom of the substrate and guides the selectivity of ketone formation. These studies show that the relative ratio of ketone versus phenol as primary products can be affected by external interactions of the oxidant with the substrate. Moreover, iron(III)–hydroperoxo complexes are shown to selectively give ketone products, whereas iron(IV)–oxo complexes will react with arenes to form phenols instead." @default.
• W2337752485 created "2016-06-24" @default.
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• W2337752485 date "2016-04-20" @default.
• W2337752485 modified "2023-10-18" @default.
• W2337752485 title "Arene activation by a nonheme iron(III)–hydroperoxo complex: pathways leading to phenol and ketone products" @default.
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• W2337752485 doi "https://doi.org/10.1007/s00775-016-1354-y" @default.
• W2337752485 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/27099221" @default.
• W2337752485 hasPublicationYear "2016" @default.
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