Combining NHC bis-Phenolate Ligands with Oxophilic Metal Centers: A Powerful Approach for the Development of Robust and Highly Effective Organometallic Catalysts - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue CHIMIA Année : 2014

Combining NHC bis-Phenolate Ligands with Oxophilic Metal Centers: A Powerful Approach for the Development of Robust and Highly Effective Organometallic Catalysts

Résumé

The present paper describes an overview of a novel family of tridentate NHC pincer ligand in which two phenoxide moieties are directly connected to the nitrogen atoms of a central N-heterocyclic carbene. It was envisioned that such a structure might be suitable for coordination to a variety of metal centers across the periodic table, including oxophilic metals. Various metal complexes bearing such ligand are indeed readily accessible in high yields via straightforward routes. Interestingly, a robust zirconium-NHC complex was found to polymerize rac-lactide in a highly controlled, living and stereoselective manner to afford heterotactic PLA.

Dates et versions

hal-04186590 , version 1 (23-08-2023)

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Stéphane Bellemin-Laponnaz, Samuel Dagorne, Ralf Duempelnnann, Pascal Steffanut. Combining NHC bis-Phenolate Ligands with Oxophilic Metal Centers: A Powerful Approach for the Development of Robust and Highly Effective Organometallic Catalysts. CHIMIA, 2014, 68 (7-8), pp.500-504. ⟨10.2533/chimia.2014.500⟩. ⟨hal-04186590⟩
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