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Chemistry of thienopyridines. XXI. Mass spectra of some parent compounds and their hydroperchlorate salts
Author(s) -
Klemm L. H.,
Rottschaefer Susan
Publication year - 1975
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.5570120511
Subject(s) - chemistry , mass spectrum , azine , fragmentation (computing) , ion , perchloric acid , hydrogen cyanide , spectral line , cyanide , aromaticity , inorganic chemistry , medicinal chemistry , organic chemistry , molecule , physics , astronomy , computer science , operating system
Abstract Mass spectral fragmentation patterns are reported for ten parent thienopyridines containing 2‐4 rings. Several spectra were determined directly on crystalline hydroperchlorate salts, which produced pure spectra of the azine components (devoid of all peaks for perchloric acid or its decomposition products). Consistent with aromaticity in the thienopyridines are formations of both singly (most abundant) and doubly charged molecular ions, as well as (M‐1) ions. Losses of hydrogen cyanide and carbon monosulfide (or thioformyl radical) occur from the molecular ions.