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Conclusions

  1. 1.

    The oxidation products of pyrrolidine oxyl radicals with bromine or SbCl5 are N-oxopyrrolidinium salts.

  2. 2.

    An increase in the frequency of the stretching vibrations of the oxoazonium group in oxopyrrolidinium salts is caused by the strain of the five-membered ring.

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Literature cited

  1. V. A. Golubev, E. G. Rozantsev, and M. B. Neiman, Izv. Akad. Nauk SSSR, Ser. Khim., 1927 (1965).

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  7. E. G. Rozantsev, Free Iminoxyl Radicals [in Russian], Khimiya (1970).

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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 161–163, January, 1972.

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Golubev, V.A., Voronina, G.N. & Rozantsev, E.G. Some N-oxopyrrolidinium salts. Russ Chem Bull 21, 146–148 (1972). https://doi.org/10.1007/BF00855675

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  • DOI: https://doi.org/10.1007/BF00855675

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