DMSO/tBuONa/O2-mediated efficient syntheses of diverse quinoxalines through α-imino radicals

Abstract

Herein, we describe an efficient method involving the synthesis of diverse quinoxalines using the DMSO/^tBuONa/O₂ system as a single-electron oxidant to form α-imino radicals and nitrogen radicals for the direct construction of C–N bonds. This methodology provides a novel approach to form α-imino radicals with good reactivity.