Redox Active N-Heterocyclic Carbenes in Oxidative NHC Catalysis
作者:Sara Bacaicoa、Simon Stenkvist、Henrik Sundén
DOI:10.1021/acs.orglett.4c00731
日期:2024.4.19
An N-heterocycliccarbene (NHC) covalently linked to a quinone introduces a novel avenue for internal oxidations within oxidative NHC catalysis. The deployment of this hybrid NHC class promotes intramolecular electronic flow in the oxidation of the Breslow intermediate to acyl azolium. The use of the redox active NHC as a catalyst is facilitated by employing aerobic regeneration, yielding carboxylic