35 research outputs found
Electron Ionization-Induced Mass Spectral Study of 5-Methylenecarboxy (5-Methylenecarbonylalkoxy)-2-Thio-(2-Alkoxycarbonylalkylthio)Uracils and 3-Oxothiazolo-[3,2- a
ChemInform Abstract: MASS SPECTROMETRY OF STILBENES. PART I. 2′,4′-DINITRO SUBSTITUTED DERIVATIVES S OF TRANS-STILBENES
ChemInform Abstract: An Electron-Impact Mass Spectral (EIMS) Study of N-1 and C-6 Carboxyalkyl- and Alkoxycarbonylalkyl-Substituted Derivatives of Uracil.
Electron impact-induced mass spectral study of new isomeric N-substituted hydrazones of ortho-, meta- and para-hydroxybenzaldehydes
Gas Chromatography Electron Ionization Mass Spectral Analysis of Thio Analogues of Pyrimidine Bases: 5-Bromo-2,4-di-<i>o</i>-(<i>m</i>- and <i>p</i>-) chloro- (bromo-)benzylthiouracils and 6-methyluracils
Electron ionization (EI) mass spectral fragmentation routes of twelve 5-bromo-2,4-di-o-(m- and p-) chloro- (bromo-)benzyl-thiouracils and 6-methyluracils are investigated. The compounds studied are analyzed using gas chromatography/mass spectrometry (GC/MS). Fragmentation pathways, whose elucidation is assisted by accurate mass measurements and metastable transitions, are discussed. Correlation between the abundances of the selected fragment ions of the compounds investigated is discussed. The data obtained make grounds for distinction of structural isomers.</jats:p
