The redox characteristics of some substituted chromene derivatives has been investigated in different nonaqueous
solvents such as, 1,2- dichloroethane (DCE), dichloromethane (DCM) and acetonitrile (AN) using 0.1mol dm-3
tetrabutylammonium perchlorate (TBAP) as a supporting electrolyte at platinum, gold and glassy carbon electrodes, using
cyclic voltammetry. Through controlled potential electrolysis (CPE), the product of oxidation and reduction can be separated
and identified. The product of oxidation was found to be the corresponding bis-compound. On the other hand, the
reduction occurs in a single two electron process to give the dianion, which abstracts protons to saturate the (-C=O) bond.
The effect of substituents on the redox mode of an electroactive site has also been studied.