Abstract
The character of the products of one-electron reduction of 2-pyridinia-1,3-indandiones (of the phthalone and ylid types) in aprotic media was studied by means of EPR spectroscopy. Free radicals with semidione structures are formed; their hfs constants are presented. Radicals with pyridinium structures are formed only under the condition of the presence of a strong electron acceptor (a cyano group) in the pyridinium ring of the molecule. The formation of unstable intermediates with dimeric structures is postulated as a result of studies by means of cyclical voltammetry.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 237–245, February, 1983.
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Benders, Y.A., Stradyn', Y.P., Baider, L.M. et al. Intermediates in the electrolytic reduction of 2-pyridyl-1,3-indandiones in aprotic media. Chem Heterocycl Compd 19, 193–200 (1983). https://doi.org/10.1007/BF00506434
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DOI: https://doi.org/10.1007/BF00506434