Please use this identifier to cite or link to this item: http://hdl.handle.net/11452/26093
Title: Electron ionization (EI) mass spectra of some 3,4-disubstituted-1,2,4- oxadiazin-5-ones and-thiones and 3,5-disubstituted 1,2,4-oxadiazin-6-ones
Authors: Pihlaja, Kalevi
Heinonen, Sanna
Martiskainen, Olli
Ağırbaş, Hikmet
Uludağ Üniversitesi/Fen-Edebiyat Fakültesi/Kimya Anabilim Dalı.
Arıkan, Nevin
AAH-6337-2021
57210000996
Keywords: Electron ionization mass spectrometry
Fragmentation pathways
Heterocyclic compounds
Reaction mechanism
Antimicrobial activities
Chemistry
Issue Date: 2009
Publisher: Arkat Usa
Citation: Pihlaja, K. vd. (2009). "Electron ionization (EI) mass spectra of some 3,4-disubstituted-1,2,4- oxadiazin-5-ones and-thiones and 3,5-disubstituted 1,2,4-oxadiazin-6-ones". Arkivoc, 337-345, 14.
Abstract: The EI mass spectra of 3,4-disubstituted-1,2,4-oxadiazin-5-ones 1-6 and -thiones 7,8 and 3,5-disubstituted 1,2,4-oxadiazin-6-ones 9,10 were recorded and their fragmentation pathways solved and compared with each other. The fragmentation routes of 5-ones and 5-thiones do not differ very much from each other but compounds 9 and 10 behave differently as could be expected based on their lactone type structures. Only compounds 4-6 exhibit a loss of CO and compound 7 a loss of NO. The loss of a benzyl group dominates the behaviour of compounds 1 and 2 which showed only few additional fragmentations. Some earlier data on some 3,4-disubstituted-1,2,4-diazin-5-ones 11-13 and -thiones 14,15 have been reanalyzed and discussed in further detail.
URI: https://doi.org/10.3998/ark.5550190.0010.e28
https://www.arkat-usa.org/arkivoc-journal/browse-arkivoc/ark.5550190.0010.e28
http://hdl.handle.net/11452/26093
ISSN: 1551-7004
Appears in Collections:Scopus
Web of Science

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