Abstract
The corresponding o-carboranylpyrylium perchlorates were obtained from 4H-pyrans of the o-carborane series under the influence of 70% HClO4 in acetic anhydride or 2,2′,4,4′-tetramethoxydiphenylammonium perchlorate. The carboranylpyranyl free radicals were studied by EPR spectroscopy, and it was shown that the unpaired electron is localized in the carborane ring.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 2, pp. 185–188, February, 1980.
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Drygina, O.V., Panov, V.B. & Okhlobystin, O.Y. 4-o-Carboranylpyrylium perchlobates and stable free radicals based on them. Chem Heterocycl Compd 16, 130–133 (1980). https://doi.org/10.1007/BF00554200
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DOI: https://doi.org/10.1007/BF00554200