Hydrogen abstraction and electron transfer with aminoxyl radicals: synthetic and mechanistic issues |
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Authors: | Galli Carlo Gentili Patrizia Lanzalunga Osvaldo |
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Institution: | Dipartimento di Chimica, Universitá La Sapienza and Istituto di Metodologie Chimiche (IMC-CNR), Sezione Meccanismi di Reazione, P.le A. Moro 5, 00185 Roma, Italy. carlo.galli@uniroma1.it |
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Abstract: | Aminoxyl radicals (R(2)NO(*)) are a valuable class of reactive intermediates with interesting synthetic and reactivity properties. This Minireview summarizes salient synthetic results obtained in radical oxidations using aminoxyl radicals, and then focuses on reactivity issues arising from recent literature surveys. The structural and reactivity features of the aminoxyl radical and substrate provides a possible explanation of the double reactivity of the aminoxyl radicals. This mechanistic dichotomy between H-atom abstraction and electron-abstraction routes is highlighted in this Minireview. |
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Keywords: | bond energy electron transfer hydrogen transfer oxidations radicals |
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