Selective catalytic 2e−-oxidation of organic substrates by an FeII complex having an N-heterocyclic carbene ligand in water

Hiroto Fujisaki; Tomoya Ishizuka; Yoshihiro Shimoyama; Hiroaki Kotani; Yoshihito Shiota; Kazunari Yoshizawa; Takahiko Kojima

doi:10.1039/D0CC03289A

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Selective catalytic 2e⁻-oxidation of organic substrates by an Fe^II complex having an N-heterocyclic carbene ligand in water†

Hiroto Fujisaki,^a Tomoya Ishizuka,

^a Yoshihiro Shimoyama,

‡^a Hiroaki Kotani,

^a Yoshihito Shiota,

^bc Kazunari Yoshizawa

^bc and Takahiko Kojima

*^ac

Author affiliations

* Corresponding authors

^a Department of Chemistry, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8571, Japan
E-mail: kojima@chem.tsukuba.ac.jp

^b Institute for Materials Chemistry and Engineering, Kyushu University, Moto-oka, Nishi-Ku, Fukuoka 819-0395, Japan

^c CREST, Japan Science and Technology Agency (JST), Japan

Abstract

An Fe^II complex, 1, having a pentadentate ligand with an NHC moiety catalyzes substrate oxidation to afford 2e⁻-oxidized products with high selectivity by suppression of overoxidation in water. A Bell–Evance–Polanyi plot for the substrate oxidation catalyzed by 1 exhibited an inflection point around 86 kcal mol⁻¹, indicating strong C–H abstraction ability of the reactive species derived from 1.

This article is part of the themed collections: Chemical Communications HOT Articles and Bioinspired metal complexes for chemical transformations and catalysis

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Article information

DOI: https://doi.org/10.1039/D0CC03289A
Article type: Communication
Submitted: 07 mai 2020
Accepted: 21 jul 2020
First published: 21 jul 2020

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Chem. Commun., 2020,56, 9783-9786

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Selective catalytic 2e⁻-oxidation of organic substrates by an Fe^II complex having an N-heterocyclic carbene ligand in water

H. Fujisaki, T. Ishizuka, Y. Shimoyama, H. Kotani, Y. Shiota, K. Yoshizawa and T. Kojima, Chem. Commun., 2020, 56, 9783 DOI: 10.1039/D0CC03289A

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