Tricarbonyl rhenium(i) tetrazolato and N-heterocyclic carbene complexes: Versatile visible-light-mediated photoredox catalysts

Thomas P. Nicholls; Liam K. Burt; Peter V. Simpson; Massimiliano Massi; Alex C. Bissember

doi:10.1039/c9dt02533b

Tricarbonyl rhenium(i) tetrazolato and N-heterocyclic carbene complexes: Versatile visible-light-mediated photoredox catalysts

Thomas P. Nicholls, Liam K. Burt, Peter V. Simpson, Massimiliano Massi, Alex C. Bissember

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

We have investigated the capacity of a range of structurally-diverse, photoactive rhenium(i) tricarbonyl complexes featuring either tetrazolato or N-heterocyclic carbene (NHC) ligands to facilitate fundamental classes of visible-light-mediated photoredox-catalysed reactions. In this study, we demonstrate that these systems mediate representative atom-transfer radical addition, hydrodehalogenation, and α-amino C-H functionalisation reactions. These rhenium(i) complexes provide greater or at least comparable reactivity to the prototypical photoredox catalyst [Ru(bpy)₃]²⁺ in many cases.

Original language	English
Pages (from-to)	12749-12754
Number of pages	6
Journal	Dalton Transactions
Volume	48
Issue number	33
DOIs	https://doi.org/10.1039/c9dt02533b
Publication status	Published - 7 Sept 2019
Externally published	Yes

Keywords

Tricarbonyl rhenium(I ) tetrazolato
N-heterocyclic carbenes
Photoredox catalysis
ligands
hydrodehalogenation
atom-transfer

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abstract = "We have investigated the capacity of a range of structurally-diverse, photoactive rhenium(i) tricarbonyl complexes featuring either tetrazolato or N-heterocyclic carbene (NHC) ligands to facilitate fundamental classes of visible-light-mediated photoredox-catalysed reactions. In this study, we demonstrate that these systems mediate representative atom-transfer radical addition, hydrodehalogenation, and α-amino C-H functionalisation reactions. These rhenium(i) complexes provide greater or at least comparable reactivity to the prototypical photoredox catalyst [Ru(bpy)3]2+ in many cases.",

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AU - Simpson, Peter V.

AU - Massi, Massimiliano

AU - Bissember, Alex C.

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KW - Tricarbonyl rhenium(I ) tetrazolato

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Tricarbonyl rhenium(i) tetrazolato and N-heterocyclic carbene complexes: Versatile visible-light-mediated photoredox catalysts

Abstract

Keywords

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