At. Lebedev et al., ISOMERIZATION OF THIOAMIDOMETHYLPYRIDINE YLIDES AND ISOQUINOLINE YLIDES UNDER ELECTRON-IMPACT, European mass spectrometry, 3(3), 1997, pp. 217-223
Citations number
12
Categorie Soggetti
Spectroscopy,"Physics, Atomic, Molecular & Chemical
The electron impact and collision-induced dissociation spectra of 2-(2
-carbethoxy-1-imino-1-methylthio)-ethylene isoquinoline ylide(1), 2-(2
-cyano-1-phenylamino-1-methylthio)-ethylene pyridine ylide (2), 2-(2-c
arboethoxy-1-amino-1-thio)-ethylene pyridine ylide (3), 2-(2-carboetho
xy-1-amino-1-thio)-ethylene isoquinoline ylide (4) and 2-(1-N-phenylam
ide-1-cyano)-ethylene pyridine ylide (5) were studied, The molecular i
ons of compounds 1-4 were shown to undergo cyclization to the correspo
nding heterocyclic compounds, analogous to the reaction of compound 1
in solution, Proposed fragmentation schemes are presented based on tan
dem mass spectrometry and high resolution mass spectrometry data.