Abstract
The high intensities of the molecular-ion peaks in the mass spectra of 9-phenylacridines, the absence of ions characterizing cleavage of the interannular bond, and the high selectivity of the fragmentation constitute evidence for the presence of conjugation between the aromatic rings of the system. Dehydrogenation processes during electron impact that lead to the formation of condensed systems are peculiar to the investigated compounds. Unique detachment of an amino group from the (M-H)+ ion was noted for 9-(4-aminophenyl)acridines.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 7, pp. 983–986, July, 1975.
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Klyuev, N.A., Khmel'nitskii, R.A., Chupakhin, O.N. et al. Effect of electron impact on 9-phenylacridines. Chem Heterocycl Compd 11, 862–865 (1975). https://doi.org/10.1007/BF00497314
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DOI: https://doi.org/10.1007/BF00497314