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Photocatalytic Giese Addition of 1,4-Dihydroquinoxalin-2-ones to Electron-Poor Alkenes Using Visible Light

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	Rostoll Berenguer, Jaume; Blay Llinares, Gonzalo Perfil; Pedro, José Ramón; Vila Descals, Carlos
	This document is a artículoDate2020
	The visible-light photoredox-catalyzed coupling of 1,4-dihydroquinoxalin-2-ones and Michael acceptors was achieved using Ru(bpy)3Cl2 as the photocatalyst and (PhO)2PO2H as an additive. The optimized reaction conditions provide a good yield for the radical conjugate addition products (44 examples) with a wide range of structurally different Michael acceptors. A gram scale reaction using sunlight irradiation is also described. Furthermore, several transformations were carried out with the Giese addition products.
	Rostoll Berenguer, Jaume Blay Llinares, Gonzalo Pedro, José Ramón Vila Descals, Carlos 2020 Photocatalytic Giese Addition of 1,4-Dihydroquinoxalin-2-ones to Electron-Poor Alkenes Using Visible Light Organic Letters 22 20 8012 8017
	https://doi.org/10.1021/acs.orglett.0c02953