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Nonequivalence of direct carbon-proton spin-spin coupling constants of methylene fragment in certain cyclic compounds

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

In the13C NMR spectra of certain 3-substituted sulfolanes, 3, 4-trans-substituted sulfolanes and silacyclopentanes, 2,3,4-trisubstituted sulfolanes, and 3,4-cis-sulfolanes with different substituents, the signal of the carbon atom of a methylene group located between the heteroatom and an asymmetric carbon atom is manifested in the form of a doublet of doublets. It is suggested that the magnetic nonequivalence of the protons is due to the presence of the asymmetric atom.

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Authors and Affiliations

  1. Institute of Chemistry, Bashkir Branch, Academy of Sciences of the USSR, Ufa

    A. A. Panasenko, L. V. Spirikhin & G. A. Tolstikov

Authors
  1. A. A. Panasenko
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  2. L. V. Spirikhin
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  3. G. A. Tolstikov
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 7, pp. 1497–1500, July, 1984.

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Panasenko, A.A., Spirikhin, L.V. & Tolstikov, G.A. Nonequivalence of direct carbon-proton spin-spin coupling constants of methylene fragment in certain cyclic compounds. Russ Chem Bull 33, 1376–1379 (1984). https://doi.org/10.1007/BF00956510

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  • DOI: https://doi.org/10.1007/BF00956510

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