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Mass spectra of isomeric thieno [2,3-b]- and thieno[3,2-b]pyridines

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The mass spectra of six isomeric thieno- and thionaphthenopyridines were studied for the first time, and the pathways of fragmentation of the molecular ions, which made it possible to isolate the peaks of the fragment ions that characterize the destruction of the pyridine and thiophene rings, were traced. It is shown that the character and type of conjugation of the heterorings can be distinguished by analyzing the mass-spectral data. The relationship between the intensity of the peak of the doubly charged molecular ion and the number of π electrons in the system and the π -donor character of the heteroring was illustrated by means of the literature data on the mass spectrometry of heteroaromatic systems with one heteroatom.

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Authors and Affiliations

  1. All-Union State Scientific-Research and Design Institute of the Photographic Chemical Industry, 125167, Moscow

    N. A. Klyuev, P. I. Abramenko, I. S. Shpileva & L. D. Pinkin

Authors
  1. N. A. Klyuev
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  2. P. I. Abramenko
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  3. I. S. Shpileva
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  4. L. D. Pinkin
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Additional information

Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 6, pp. 758–761, June, 1982.

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Klyuev, N.A., Abramenko, P.I., Shpileva, I.S. et al. Mass spectra of isomeric thieno [2,3-b]- and thieno[3,2-b]pyridines. Chem Heterocycl Compd 18, 572–575 (1982). https://doi.org/10.1007/BF00506144

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  • DOI: https://doi.org/10.1007/BF00506144

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