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Electron impact induced fragmentation of 4-aryl-4,6,7,8-tetrahydro-1H,3H-quinazolinone-2,5-diones

Mayer, Klaus K., Dove, Stefan, Pongratz, Herwig, Ertan, M. and Wiegrebe, Wolfgang (1998) Electron impact induced fragmentation of 4-aryl-4,6,7,8-tetrahydro-1H,3H-quinazolinone-2,5-diones. Heterocycles 48 (6), pp. 1169-1183.

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Other URL: http://www.heterocycles.jp/library/abstract.php?article=7142


The mol. ions (M+×) of 4-substituted aryl-4,6,7,8-tetrahydro-1H,3H-quinazoline-2,5-diones (Biginelli compds.) (2 - 18) decomp. by loss of the substituents X of the Ph group (X = o-F; o-, m-, p-Cl, Br, OCH3, CH3; 2,3-, 2,4-, 2,6-, 3,4-dichloro) giving rise to prominent (M - ×X)+ ions at 70 and 12 eV, resp. In the cases of o-Cl and o-Br substitution, the M+× is extremely unstable. In general, ...


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Item type:Article
Institutions:Chemistry and Pharmacy > Institute of Pharmacy > Pharmaceutical/Medicinal Chemistry II (Prof. Buschauer)
Chemistry and Pharmacy > Institute of Pharmacy > Pharmaceutical/Medicinal Chemistry I (Prof. Elz)
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Dewey Decimal Classification:500 Science > 540 Chemistry & allied sciences
Refereed:Yes, this version has been refereed
Created at the University of Regensburg:Yes
Item ID:5452
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