Abstract
AbstractAn efficient synthesis of a variety of 3‐difluoroalkyl quinoxalin‐2(1H)‐ones via a photoredox‐catalyzed three‐component reaction between quinoxalin‐2(1H)‐ones, vinylarenes, with inexpensive and easily accessible difluoromethyltriphenyl phosphonium bromide salt as the difluoromethylated reagent is described. This protocol shows excellent reactivity, providing a wide range of difluoroalkyl‐substituted quinoxalin‐2(1H)‐ones in moderate to excellent yields under mild conditions. A difluoroalkyl radical intermediate was involved in this three‐component transformation.
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