Electrochemical Decarboxylative Minisci-Type Acylation of Quinoxalines under Catalyst- and External-Oxidant-Free Conditions

Abstract

Here we report an electrochemical approach for the Minisci-type acylation of quinoxalines with α-keto acids as the acyl radical precursors. With the assistance of TFA as the key additive, acylated quinoxalines were constructed in synthetically useful yields. The distinguishable features of this electrochemical protocol include catalyst- and external oxidant-free conditions, and operational simplicity.