Visible‐Light‐Promoted Electron Donor‐Acceptor Complex Enabled Decarboxylative Alkylation of Quinoxalin‐2(1H)‐ones and N‐Hydroxyphthalimide Esters with Na2S as a Catalytic Donor.

We developed a novel and efficient method for the synthesis of various 3‐alkylated quinoxalin‐2(1H)‐ones (32 examples, 70%–96% yields) through electron donor‐acceptor complex enabled alkylation of quinoxalin‐2(1H)‐ones with N‐ hydroxyphthalimide esters as the alkyl source and Na2S as the catalytic electron donor under external photocatalyst‐, oxidant‐ and additive‐free conditions. [ABSTRACT FROM AUTHOR]