ja0c04344_si_001.pdf (23.29 MB)
Modular Tuning of Electrophilic Reactivity of Iridium Nitrenoids for the Intermolecular Selective α‑Amidation of β‑Keto Esters
journal contribution
posted on 2020-07-03, 17:33 authored by Minhan Lee, Hoimin Jung, Dongwook Kim, Jung-Woo Park, Sukbok ChangWe
report herein an Ir-catalyzed intermolecular amino group transfer
to β-keto esters (amides) to access α-aminocarbonyl products
with excellent chemoselectivity. The key strategy was to engineer
electrophilicity of the putative Ir-nitrenoids by tuning electronic
property of the κ2-N,O chelating ligands, thus facilitating nucleophilic addition of enol
π-bonds of 1,3-dicarbonyl substrates.
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group transferβ- keto estersnucleophilic additionModular Tuningengineer electrophilicityElectrophilic ReactivityEsterκ 2AmidationIridium NitrenoidsstrategyIr-catalyzedKetodicarbonylO chelating ligandsenol π- bondsIr-nitrenoidsubstrateamideaccess α- aminocarbonyl productsIntermolecularchemoselectivity
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