Electrochemical Hydroalkylation of Quinoxalin‐2(1H)‐ones with Alkyl Halides

We reported herein an electrochemically reductive alkylation, allylation and propargylation of quinoxalin‐2(1H)‐ones with haloalkanes. In an undivided cell, treatment of quinoxalin‐2(1H)‐ones and alkyl halides with constant current, a wide range of 3‐alkylated‐3,4‐dihydroquinoxalin‐2(1H)‐one and its derivatives can be isolated in 25–87% yields.