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Structural and stereochemecal factors in the mass spectrometry of the substituted cyclopentanes. 1. mono- and dialkylcyclopentanes

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Conclusions

  1. 1.

    The mono- and dialkylcyclopentanes fragment in the same manner under electron impact.

  2. 2.

    The m/e 68 and 69 doublet is characteristic of the monoalkylcyclopentanes and can be used for their identification.

  3. 3.

    The mass spectra of the trans and cis isomers of the 1,3-dialkylcyclopentanes are identical. The spectra of the 1,2-substituted compounds differ in the intensities of the molecular ion and C4H8 + ion peaks.

  4. 4.

    The spectra of the structural isomers show clearcut differences in the intensities of the M+., [M-RH]+., and C5H7 + ion peaks which can be used in establishing substitution types.

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Literature cited

  1. 1.

    Al. A. Petrov, Chemistry of the Naphthenes [in Russian], Nauka (1971), Chap.1, p. 7.

  2. 2.

    P. Natalis, Bull. Soc. Chim. Belg.,66, 5 (1957);73, 560, 569 (1964).

  3. 3.

    J. Momigny and P. Natalis, Bull. Soc. Chim. Belg.,66, 26 (1957).

  4. 4.

    O. A. Aref'ev, V. A. Zakharenko, and Al. A. Petrov, Neftekhimiya,4, 505 (1966).

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Additional information

Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 1, pp. 68–73, January, 1979.

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Golovkina, L.S., Rusinova, G.V. & Petrov, A.A. Structural and stereochemecal factors in the mass spectrometry of the substituted cyclopentanes. 1. mono- and dialkylcyclopentanes. Russ Chem Bull 28, 58–62 (1979). https://doi.org/10.1007/BF00925398

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Keywords

  • Mass Spectrometry
  • Mass Spectrum
  • Electron Impact
  • Cyclopentane
  • Structural Isomer