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Nitropyrazoles

9. Parameters of the1H,13C, and15N (14N) spectra and the structures ofN-aminonitropyrzoles

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Abstract

The structures of substitutedN-aminonitropyrazoles and 1- and 2-amino-4-nitro-1,2,3-triazoles as well as the site of protonation of 1-aminopyrazole were determined based on the1H,13C, and15N (14N) NMR spectra. The13C NMR spectra were recorded under conditions of13C-{1H,14N} triple resonance. Effects of substituents in the pyrazole ring on the13C and14N chemical shifts were studied. The13C,1H and15N,1H spin-spin coupling constants, obtained using techniques of [1H]→13C and [1H]→15N polarization transfer (SPT, INEPT), were measured, fully assigned, and discussed.

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Authors and Affiliations

  1. N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky prosp., 117913, Moscow, Russian Federation

    B. I. Ugrak, V. M. Vinogradov, I. L. Dalinger & S. A. Shevelev

Authors
  1. B. I. Ugrak
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  2. V. M. Vinogradov
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  3. I. L. Dalinger
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  4. S. A. Shevelev
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Additional information

Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 11, pp. 2181–2186, November, 1995.

For Part 8, see Ref. 1.

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Ugrak, B.I., Vinogradov, V.M., Dalinger, I.L. et al. Nitropyrazoles. Russ Chem Bull 44, 2087–2092 (1995). https://doi.org/10.1007/BF00696709

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  • DOI: https://doi.org/10.1007/BF00696709

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