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- W2005280673 abstract "Mit Hilfe der Stoßaktivierungsspektroskopie wird belegt, daß die stabilen -Ionen aus o-Nitrobenzaldehyddimethylacetal als ionisierte o-Nitrosobenzoesäuremethyleser vorliegen. Ferner wird—im teilweisen Gegensatz zu den Resultaten älterer Arbeiten—belegt, daß die durch elektronenstoßin duzierte H2O-Eliminierung aus o-Nitrobenzylalkohol, HCN-Abspaltung aus o-Nitrobenzylcyanid order HNO-Verlust aus o-Nitrobenzaldoxim erzeugten -Ionen praktisch vollständig die Struktur von 2.1-Benzisoxazolin-3-on besitzen. Ionisierter o-Nitrosobenzaldehyd lagert sich vor dem stoßinduzierten Zerfall vollständig in 2.1-Benzisoxazolin-3-on um, während 2-Benzoxazolinon und 3-Hydroxy-1.2-benzisoxazol innerhald von 10−5s weitgehend strukturstabil sind. Collisional activation demonstrates that the stable ions from o-nitrobenzaldehydedimethylacetale possess the structure of ionized o-nitroso benzoic acid methyl ester. Contrary to previous conclusions it is demonstrated that the structure of the stable ions (m/e 135) from different precursors [i.e. o-nitrobenzyl alcohol o-nitrobenzyl cyanide and o-nitrobenzaldoxime is best represented by 2,1-benzisoxazoline-3-one. Ionized o-nitrosobenzaldehtde rearranged to 2,1-benzisoxazoline-3-one prior to collision induced decomposition, whereas 2-benzoxazolinone and 3-hydroxy-1,2-benzisoxazole do not rearrange within 10−5 s." @default.
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- W2005280673 date "1977-09-01" @default.
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- W2005280673 title "Massenspektrometrische Untersuchung organischer Stickstoffverbindungen. XXVII—Intramolekulare Redoxreaktionn bei ionisiertenortho-substituierten Nitroaromaten" @default.
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- W2005280673 doi "https://doi.org/10.1002/oms.1210120909" @default.
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