Abstract
Dissociation occurring during mass-spectrometric measurements of 2-(benzoylaminocaproylamino)benzophenones substituted in the benzene ring and also of 11- and 22-membered di- and tetraazaheterocycles obtained by their intra- and intermolecular cyclization proceeds preferentially at the amide C-N bonds, partially with the transfer of a hydrogen atom to the amino group. The size and character of the heterocycle can be established by analyzing the intensities of the characteristic ions.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 528–532, April, 1987.
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Terent'ev, P.B., Ajami, H.S., Bundel', Y.G. et al. Mass-spectrometric identification of certain 2-(ɛ-benzoylaminocaproylamino)benzophenones and their di- and tetraazamacrocyclic cyclization products. Chem Heterocycl Compd 23, 440–443 (1987). https://doi.org/10.1007/BF00546743
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DOI: https://doi.org/10.1007/BF00546743