Synthesis and Catalytic Reactivity of a Dicopper(II) μ-η(2):η(2)-Peroxo Species Supported by 1,4,7-Tri-tert-butyl-1,4,7-triazacyclononane

Inorganic Chemistry
Gregory J KarahalisChristopher C Scarborough

Abstract

O2-derived Cu(n)O2 adducts are attractive targets for aerobic oxidation catalysis because of their remarkable reactivity, but oxidation of the supporting ligand limits catalytic turnover. We report that (t)Bu3tacn (1,4,7-tri-tert-butyl-1,4,7-triazacyclononane) supports a dicopper(II) μ-η(2):η(2)-peroxo species with the highest solution stability outside of an enzyme. Decomposition of this species proceeds without oxidation of the (t)Bu3tacn ligand. Additive-free catalytic aerobic oxidation reactions at or above room temperature are described, highlighting the potential of oxidatively robust ligands in aerobic copper catalysis.

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Citations

Dec 3, 2016·Journal of Biological Inorganic Chemistry : JBIC : a Publication of the Society of Biological Inorganic Chemistry·William KeownT Daniel P Stack
Jan 20, 2017·Chemical Reviews·Courtney E ElwellWilliam B Tolman

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