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Electron impact mass spectrum of a series of 3-methyl-2(1H)-quinoxalinone derivatives
Yang, XB; Ding, ST; Wang, AB; Li, XY; Yang, YS; Hu, WH
2002-12-01
Source PublicationCHINESE JOURNAL OF ANALYTICAL CHEMISTRY
ISSN0253-3820
Volume30Issue:12Pages:1418-1421
AbstractA series of 2(1H)-quinoxalin-2-one derivatives: 1-alkyl-3-methyl-2(1H)-quinoxalin-2-one (alkyl = H, CH3 Et, n-C5H11), 1-alkyl-3-methyl-6-nitro-2(1H)-quinoxalin-2-one (alkyl= CH3, Et) and 1-methyl- 3-methyl-6-amino-2(1H)-quinoxalin-2-one have been studied by electron impact mass spectrometry (EI-MS). Based on the analysis of fragments appeared in EI mass spectrum, as well as the structure characterizations of these compounds some fragmentation rules are obtained. At the same time, the effects of different substituents on melting point has also studied. Results show that as the length of the alkyl chain at the nitrogen on the 1-position increased in the sa me kind of 2(1H)-quinoxalinone derivatives, the melting point usually decreases, introduction of nitro or amino group to the heterocyclic compounds always made melting point higher.
KeywordQuinoxalinone Derivatives Electron Impact Mass Spectrum Effect Of Substituents Melting Point Fragmentation Rules
Indexed BySCI
Language英语
WOS IDWOS:000180173400003
PublisherSCIENCE CHINA PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/78100
Collection中国科学院化学研究所
Corresponding AuthorYang, XB
Affiliation1.Inst Chem Def, Res Ctr 1, Beijing 100083, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing Ctr Mass Spectrometry, Beijing 100080, Peoples R China
Recommended Citation
GB/T 7714
Yang, XB,Ding, ST,Wang, AB,et al. Electron impact mass spectrum of a series of 3-methyl-2(1H)-quinoxalinone derivatives[J]. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,2002,30(12):1418-1421.
APA Yang, XB,Ding, ST,Wang, AB,Li, XY,Yang, YS,&Hu, WH.(2002).Electron impact mass spectrum of a series of 3-methyl-2(1H)-quinoxalinone derivatives.CHINESE JOURNAL OF ANALYTICAL CHEMISTRY,30(12),1418-1421.
MLA Yang, XB,et al."Electron impact mass spectrum of a series of 3-methyl-2(1H)-quinoxalinone derivatives".CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 30.12(2002):1418-1421.
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