Mass spectral studies of methoxynaphthoflavones

The electron impact induced fragmentations of seven methoxynaphthoflavones have been studied with the aid of low‐ and high‐resolution measurements, metastable decompositions and isotope labelling using carbon‐13 atoms. The retro Diels‐Alder cleavage of the methoxynaphthoflavones is strongly influenc...

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Published inRapid communications in mass spectrometry Vol. 13; no. 21; pp. 2071 - 2079
Main Authors Ardanaz, Carlos E., Guidugli, Federico H., Catalán, César A. N., Joseph-Nathan, Pedro
Format Journal Article
LanguageEnglish
Published Chichester, UK John Wiley & Sons, Ltd 01.01.1999
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Summary:The electron impact induced fragmentations of seven methoxynaphthoflavones have been studied with the aid of low‐ and high‐resolution measurements, metastable decompositions and isotope labelling using carbon‐13 atoms. The retro Diels‐Alder cleavage of the methoxynaphthoflavones is strongly influenced by the substituent position providing in most cases intact A‐ and B‐ring fragments. The intensity ratio of these ring fragments appears to be very sensitive to the charge distribution within the parent ion. Copyright ­© 1999 John Wiley & Sons, Ltd.
Bibliography:ark:/67375/WNG-H5BV1C6W-Q
ArticleID:RCM746
istex:6871F39CAB6DC12A2715B658194F776D56C221D3
Research Member of the National Research Council of Argentina (CONICET)
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0951-4198
1097-0231
DOI:10.1002/(SICI)1097-0231(19991115)13:21<2071::AID-RCM746>3.0.CO;2-K