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Synthesis and mass spectral fragmentation patterns of some new heterocyclic bis-carboxamides

Authors

  • Grace Karminski-Zamola,

    Corresponding author
    1. Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 41000 Zagreb, Marulićev trg 20, Croatia
    • Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 41000 Zagreb, Marulićev trg 20, Croatia
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  • Andrina Crnjak,

    1. Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 41000 Zagreb, Marulićev trg 20, Croatia
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  • Miroslav Bajić

    1. Department of Organic Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 41000 Zagreb, Marulićev trg 20, Croatia
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Abstract

The electron impact mass spectra of some newly synthesized heteropolycyclic bis-carboxamides are discussed. The dominant peaks in all these spectra are formed by the cleavage of the C[BOND]N bond on one side of the anilino group with the formation of a fragment ion C9H4OSCI+m/z 195, as the base peak. Cleavage of the C[BOND]N bond with charge retention on nitrogen leads to characteristic ions in some cases.

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