A green synthesis of two different series of new benzofuran derivatives is carried out by anodic oxidation of 4,4`-biphenol (4BP) in the presence of some CH-acid compounds (malononitrile, methyl cyanoacetate, and ethyl cyanoacetate) as nucleophile by controlling potential during electrolysis. The results indicate that the CH-acid compounds participate in Michael like addition reaction with the electrochemically generated diphenyl-p-quinone (DPQ), converts it to the corresponding products depends on applied electrode potential or current density. In this work, desired products in water/ethanol (50/50, v/v) mixture, with high yield, and high atom economy under simple and reagentless green galvanostatic method are provided.
