چکیده
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The electrochemical oxidation of 4-(piperazin-1-yl)phenols have been studied in the presence of indole
derivatives as nucleophiles in water/acetonitrile mixture by means of cyclic voltammetry and controlledpotential coulometry. The reaction mechanism is believed to be oxidation of 4-(piperazin-1-yl)phenols,
Michael addition reaction, oxidation of the formed adduct, another Michael addition reaction, oxidation
of new adduct and hydrolysis (ECECEC). The results revealed that bisindolyl-p-quinones were synthesized
through the regioselective addition of indoles to electrochemically generated quinone imines in good
yields at carbon electrode in a divided cell.
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