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ESR analysis of the kinetic alkalinity of pseudophedrine

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The kinetics of protonation of pseudoephedrine by 3,6-di-tert-butyl-2-hydroxyphenoxyl have been analyzed by the ESR technique. It was shown that protolysis of the radical produced closed ionic pairs with the pseudoephedrine cation in a dimer state.

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    A. S. Masalimov, S. N. Nikol'skii, A. P. Abdykarimova, A. I. Prokof'ev, and A. I. Muldakhmetov,Izv. Akad. Nauk KazSSR, Ser. Khim., No. 2, 15 (1989).

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    A. S. Masalimov, A. I. Prokof'ev, S. P. Solodovnikov, N. N. Bubnov, and M. I. Kabachnik,Izv. Akad. Nauk SSSR, Ser. Khim., No. 4, 767 (1977).

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A. N. Nesmeyanov Institute of Elementoorganic Compounds, Russian Academy of Sciences, 117813 Moscow. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 9, pp. 2007–2011, September, 1992.

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Masalimov, A.S., Nikol'skii, S.N., Abdykarimova, A.P. et al. ESR analysis of the kinetic alkalinity of pseudophedrine. Russ Chem Bull 41, 1559–1562 (1992). https://doi.org/10.1007/BF00863572

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  • ESR
  • pseudoephedrine
  • 3,6-di-tert-butyl-2-hydroxyphenoxyl
  • ion pairs