Concepedia

Distinct Reactivity Modes of a Copper Hydride Enabled by an Intramolecular Lewis Acid

Emily E. Norwine, John J. Kiernicki, Mat­thias Zeller, Nathaniel K. Szymczak

Journal of the American Chemical Society · 2022 · 24 citations · 72 references

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Concepts

Abstract

We disclose a 1,4,7-triazacyclononane (TACN) ligand featuring an appended boron Lewis acid. Metalation with Cu(I) affords a series of tetrahedral complexes including a boron-capped cuprous hydride. We demonstrate distinct reactivity modes as a function of chemical oxidation: hydride transfer to CO2 in the copper(I) state and oxidant-induced H2 evolution as well as alkyne reduction.

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