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(a) General representation of the use of a redox auxiliary that drives both the formation of an EDA complex and, upon photoexcitation and fragmentation, the generation of an electronically unbiased radical. (b) Photochemical generation of nitrogen-centered radicals by the installation of an appropriately functionalized dinitro-substituted auxiliary on the O-aryl oximes 35. RA: redox auxiliary; CHD: cyclohexadiene; HAT: hydrogen atom transfer.
