Herein, we described an efficient method involving the synthesis of diverse quinoxalines using DMSO/tBuONa/O2 system as single-electron oxidants to form α-imino radicals and nitrogen radicals for the direct construction of...
A Cu(OTf)2-mediated regioselective dearomative aryl-hydroxylation across the C(sp2)N bond of 2-aryl quinoxalines and bis-