Activation of Strong Bonds Enabled by Arene π-Coordination

Abstract

π-Coordination of an arene to a metal fragment decreases its electron density and has been often utilized to accelerate nucleophilic aromatic substitution, for example. By contrast, this strategy has only recently been applied to transition metal–catalyzed C–H bond functionalization. This short review summarizes the development of the field, with the hope to further stimulate interest in this methodology. Transition metal–catalyzed and –mediated C–H activation of arenes η⁶-coordinated to chromium and other metals is mainly discussed; to highlight the potential of this strategy for organic synthesis, the activation of other strong bonds, with a focus on C–O bond activation, is also presented.

Keywords

π-Coordination - η⁶-Complex - Arene functionalization - C–H bond activation - C–O bond activation - C–Halogen bond activation

Publikationsverlauf

Eingereicht: 31. März 2025

Angenommen nach Revision: 15. Juli 2025

Accepted Manuscript online:
15. Juli 2025

Artikel online veröffentlicht:
15. August 2025

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