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Synthesis of Hydrazide-Containing Chroman-2-ones and Dihydroquinolin-2-ones via Photocatalytic Radical Cascade Reaction of Aroylhydrozones

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journal contribution
posted on 02.12.2016, 19:49 by Yu Zhao, Jia-Rong Chen, Wen-Jing Xiao
A general and efficient visible light photocatalytic α-amino carbon radical-based cascade reaction of aroylhydrazones has been described. This protocol tolerates a wide array of α-silylamines and aroylhydrazones to afford the corresponding diversely functionalized hydrazide-containing chroman-2-ones and dihydroquinolin-2-ones in generally good yields with excellent diastereo­selectivities.