Abstract: Two dicyanomethylidene-substtuted quinocyclopropenes, la and 2a, have been synthesized and studied. Oxidation of la produced only decomposition products but oxidation of 2a yielded the new polyquinone 2. Compound 2 was studied by cyclic voltammetry in aprotic media; it is unique among polyquinones in undergoing two-electron reduction within a single voltammetric wave, with El= 0.00 V and E2=-0.04 V vs. SCE.
