Electron Ionization Mass Spectra of Organophosphorus Compounds. Part III: Mass Spectrometric Fragmentation of Diethyl Spiro[Pyrimidino[5,3′][1,2]Oxazole] Phosphonate, Diethyl (Oxazolo[5,4-D]Pyrimidine-4,6-Dione)Phosphonate, and Diethyl (Pyrimidino[4,5-B][1,4]Oxazine)Phosphonate Derivatives
Abstract:Fragmentation pathways of 14 organophosphorus compounds derived from diethyl spiro[1008 MOUNIR A. I. SALEM ET AL.fragment ions were formed by successive loss of simple functional groups followed by decomposition of heterocycles connected to pyrimidine rings.
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