Redox properties of 2,4-diaryl-substituted cyclohexa[b]thiopyrylium salts |
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| Authors: | N N Ivanova N T Berberova A S Archegova E S Klivov A V Shpakov O Yu Okhlobystin S K Klimenko |
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| Institution: | (1) N. G. Chernyshevskii Saratov State University, 410026 Saratov;(2) Scientific-Research Institute of the Chemistry of Free Radicals, K. L. Khetagurov North Ossetian State University, 362040 Vladikavkaz |
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| Abstract: | Ascheme for formation of 6,6 ,7,7-tetrahydro-2,2,4,4-tetraaryl-8,8-bis(5H-1-benzothiopyranyls) through intermediate radicals and cation radicals was substantiated as a result of a study of the electrochemical behavior of 2,4-diarylcylohexab]thiopyrylium tetrafluoroborates and 2,4-diaryl-4H-cyclohexab]thiopyrans and comparison with the results of their oxidative dimerization. The formation of 2,4-diarylcyclohexab]thiopyranyl radicals is also confirmed by EPR spectroscopy.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 349–354, March, 1992. |
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