Enzyme-like Supramolecular Iridium Catalysis Enabling C-H Bond Borylation of Pyridines with meta-Selectivity.

Autor: Trouvé J; Univ Rennes, CNRS, ISCR-UMR6226, 35000, Rennes, France., Zardi P; Univ Rennes, CNRS, ISCR-UMR6226, 35000, Rennes, France., Al-Shehimy S; Univ Rennes, CNRS, ISCR-UMR6226, 35000, Rennes, France., Roisnel T; Univ Rennes, CNRS, ISCR-UMR6226, 35000, Rennes, France., Gramage-Doria R; Univ Rennes, CNRS, ISCR-UMR6226, 35000, Rennes, France.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2021 Aug 09; Vol. 60 (33), pp. 18006-18013. Date of Electronic Publication: 2021 May 01.
DOI: 10.1002/anie.202101997
Abstrakt: The use of secondary interactions between substrates and catalysts is a promising strategy to discover selective transition metal catalysts for atom-economy C-H bond functionalization. The most powerful catalysts are found via trial-and-error screening due to the low association constants between the substrate and the catalyst in which small stereo-electronic modifications within them can lead to very different reactivities. To circumvent these limitations and to increase the level of reactivity prediction in these important reactions, we report herein a supramolecular catalyst harnessing Zn⋅⋅⋅N interactions that binds to pyridine-like substrates as tight as it can be found in some enzymes. The distance and spatial geometry between the active site and the substrate binding site is ideal to target unprecedented meta-selective iridium-catalyzed C-H bond borylations with enzymatic Michaelis-Menten kinetics, besides unique substrate selectivity and dormant reactivity patterns.
(© 2021 Wiley-VCH GmbH.)
Databáze: MEDLINE
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