Abstract
AbstractN,N’‐Diaryl ethylenediamines are common feedstocks in organic synthesis and important structural motifs in medicinal chemistry. Whereas the C−N formation reactions based on anilines and aryl halides are the most direct methods to access N,N’‐diaryl ethylenediamines, the photocatalytic synthetic version remains undeveloped. Herein we describe the dual nickel/photoredox‐catalyzed amination reaction using nitroarenes and trimethylamine as reaction substrates. This cascade transformation hinges on the multiple C−N and C−C coupling events based on the nitrogen radical and α‐aminomethyl radical derived from nitroarene and trimethylamine, respectively. A variety of N‐formyl N,N’‐diaryl ethylenediamines can be obtained under the reaction protocol. Subsequent hydrolysis offers the N,N’‐diaryl ethylenediamines for further derivatizations.
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