Lewis Acid‐Tethered (cAAC)—Copper Complexes: Reactivity for Hydride Transfer and Catalytic CO2 Hydrogenation

Author:

Song Hayoung1ORCID,Szymczak Nathaniel K.1ORCID

Affiliation:

1. Department of Chemistry University of Michigan Ann Arbor, Michigan 48109 United States

Abstract

AbstractWe present a series of borane‐tethered cyclic (alkyl)(amino)carbene (cAAC)‐copper complexes, including a borane‐capped Cu(I) hydride. This hydride is unusually hydridic and reacts rapidly with both CO2 and 2,6‐dimethylphenol at room temperature. Its reactivity is distinct from variants without a tethered borane, and the underlying principles governing the enhanced hydricity were evaluated experimentally and theoretically. These stoichiometric results were extended to catalytic CO2 hydrogenation, and the borane‐tethered (intramolecular) system exhibits ~3‐fold enhancement relative to an intermolecular system.

Publisher

Wiley

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