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1H and 13C NMR study of novel fused 1,2,4-triazole heterocycles

✍ Scribed by Zoltán Szabó; Ferenc Kóródi; Gyula Batta

Publisher
John Wiley and Sons
Year
1992
Tongue
English
Weight
449 KB
Volume
30
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

The ^1^H and ^13^C NMR spectra of some novel 1,2,4‐triazolo [1,3] thiazinoquinoline isomeric pairs are interpreted in terms of structural assignments. The structure of most compounds has been confirmed by NOE difference spectroscopy. Characteristic differences have been observed in both ^1^H and ^13^C NMR spectra of these isomeric Pairs: some of the ^1^H and ^13^C chemical shifts, and also the one bond ^13^C^1^H couplings of triazole protons, differ consistently in the NMR spectra of the isomers. The coupling constants have been determined using a combination of INEPT and chemical shift selective filtering.

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