Rapid Iron(III)-Fluoride Mediated Hydrogen Atom Transfer
Rapid Iron(III)-Fluoride Mediated Hydrogen Atom Transfer
Panda, C.; Doyle, L. M.; Gericke, R.; McDonald, A. R.
Abstract
We anticipate high-valent metal fluoride species will be highly effective hydrogen atom transfer (HAT) oxidants because of the magnitude of the H–F bond (in the product) that drives HAT oxidation. We prepared a dimeric Fe(III)(F)–F–Fe(III)(F) complex (1) by reacting Fe(II)(NCCH₃)₂(TPA) where X = F/OTf. 1 and 2 were characterised using NMR, EPR, UV-vis, and FT-IR spectroscopies and mass spectrometry. 2 was a remarkably reactive Fe III reagent for oxidative C–H activation, demonstrating reaction rates for hydrocarbon HAT comparable to the most reactive Fe III and Fe IV oxidants.
Keywords: high-valent oxidants; biomimetic; proton coupled electron transfer; fluoride oxidant
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Angewandte Chemie - International Edition 60(2021)50, 26281-26286
DOI: 10.1002/anie.202112683
Cited 14 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-33292