Conclusions
In the electroreduction of alizarin in an aprotic medium the stepwise formation of the anion-radical and subsequently of the dianion has been observed; under conditions of the prolonged process the anion-radical disproportionates and through intermediate stages of deprotonation and reduction is converted into the stable dianion-radical.
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 5, pp. 983–988, May, 1985.
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Bulatov, A.V., Sosonkin, I.M., Nikitaev, A.T. et al. Radical intermediates in the electrochemical reduction of alizarin. Russ Chem Bull 34, 895–899 (1985). https://doi.org/10.1007/BF01142770
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DOI: https://doi.org/10.1007/BF01142770