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New isomeric 2-ortho-(meta- and para-) chloro-(bromo and nitro-)benzylthio-6-aminouracils

✍ Scribed by Elżbieta Wyrzykiewicz; Anna Szponar


Publisher
Journal of Heterocyclic Chemistry
Year
2001
Tongue
English
Weight
73 KB
Volume
38
Category
Article
ISSN
0022-152X

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✦ Synopsis


Abstract

Ten new ortho, meta and para substituted derivatives of 2‐benzylthio‐6‐aminouracils have been prepared. Electron Impact (EI) induced mass spectral fragmentation of these compounds was investigated. Fragmentation pathways are proposed on the basis of accurate mass and metastable transition measurements. The correlation between the intensities of the M^+^‐ and the selected fragment ions of these compounds is discussed. The data obtained create the basis for dinstinguishing isomers. The ^1^H and ^13^C NMR spectra of these compounds were assigned unambiguously using a combination of heteronuclear (HETCOR) spectra the chemical shifts. The data derived from these spectra can be used to differentiate the isomers.


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