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Mass spectral fragmentation patterns of various 6‐substituted 2,4‐ bis‐(m ‐aminoanilino)‐ s ‐triazines
Author(s) -
Karliner J.,
Seltzer R.
Publication year - 1971
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570080417
Subject(s) - chemistry , fragmentation (computing) , mass spectrum , ion , spectral line , ring (chemistry) , polyatomic ion , electron ionization , stereochemistry , computational chemistry , organic chemistry , ionization , physics , astronomy , computer science , operating system
The mass spectra of 6‐substituted‐2,4‐ bis‐(m ‐aminoanilino)‐ s ‐triazines were determined and found to be dominated by intense molecular ions (base peak), strong M‐H peaks and fragment ions diagnostic for the arylamino and C‐6 substituents. Mechanisms have been proposed for the formation of the major peaks in the spectra. Fragmentation pathways involving hydrogen transfer reactions have been rationalized by concomitant opening of the triazine ring rather than an amino‐imino tautornerization as previously suggested. Fragmentation reactions accompanied by rearrangement modes have also been encountered in some of the compounds studied.