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Divergent Fe-Mediated C-H Activation Paths Driven by Alkali Cations.

ABSTRACT: The association of the ferrous complex Fe^IICl₂(dmpe)₂ (1) with alkali bases M(hmds) (M = Li, Na, K) proves to be an efficient platform for the activation of Ar-H bonds. Two mechanisms can be observed, leading to either Ar-Fe^II species by deprotonative ferration or hydrido species Ar-Fe^II-H by oxidative addition of transient Fe⁰(dmpe)₂ generated by reduction of 1. Importantly, the nature of the alkali cation in M(hmds) has a strong influence on the preferred path. Starting from the same iron precursor, diverse catalytic applications can be explored by a simple modulation of the M^I cation. Possible strategies enabling cross-coupling using arenes as pro-nucleophiles, reductive dehydrocoupling, or deuteration of B-H bonds are discussed.

SUBMITTER: Wowk V

PROVIDER: S-EPMC10900209 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature

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Divergent Fe-Mediated C-H Activation Paths Driven by Alkali Cations.

Wowk Vincent V Bauer Alexis K AK Radovic Aleksa A Chamoreau Lise-Marie LM Neidig Michael L ML Lefèvre Guillaume G

JACS Au 20240119 2

The association of the ferrous complex FeIICl2(dmpe)2 (1) with alkali bases M(hmds) (M = Li, Na, K) proves to be an efficient platform for the activation of Ar-H bonds. Two mechanisms can be observed, leading to either Ar-FeII species by deprotonative ferration or hydrido species Ar-FeII-H by oxidative addition of transient Fe0(dmpe)2 generated by reduction of 1. Importantly, the nature of the alkali catio ...[more]

PMID: 38425937

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