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Chemistry of thienopyridines. XXV. Comparative mass spectra of some amino and acylamino derivatives
Author(s) -
Klemm L. H.,
Barnish I. T.,
Mccoy D. R.
Publication year - 1977
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.5570140226
Subject(s) - chemistry , mass spectrum , fragmentation (computing) , ion , polyatomic ion , amine gas treating , electron ionization , hydrogen cyanide , derivative (finance) , cyanide , cyanide ion , hydrogen , computational chemistry , inorganic chemistry , organic chemistry , computer science , financial economics , economics , ionization , operating system
Electron‐impact mass spectral fragmentation patterns are reported for various aminothieno‐pyridines (TPNH 2 ) and aeylaminothtenopyridines. The molecular ion TPNH 2 + shows loss of atomic hydrogen, hydrogen cyanide and both thioformyl radical and cation. TPNH 2 + is the most abundant ion in the spectrum of each acylamino compound investigated. A semiquanti‐tative mass spectrum of the amine TPNH 2 can be obtained by deletion of selected peaks (for the acetylium and molecular ions) from the observed mass spectrum of the A‐acetyl derivative.