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Structural studies on mesoionic 1,2,3,4-thiatriazolo-5-aminides and 1,2,3,4-thiatriazolo-5-methylides by nitrogen and carbon NMR

✍ Scribed by Jaroslaw Jażwiński; Lech Stefaniak

Publisher
John Wiley and Sons
Year
1993
Tongue
English
Weight
405 KB
Volume
31
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^15^N, ^14^N, ^13^C and ^1^H NMR data were used for the structural analysis of seven 1,2,3,4‐thiatriazoles with various exocyclic groups. Measurements at various temperatures were carried out in order to study the behaviour of exocyclic groups. Some ^15^N‐labelled compounds were prepared to assist in the interpretation of the ^15^N NMR spectra. The results suggest that the investigated compounds exist in the cyclic structure. Three of the investigated compounds have not been previously synthesized.

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13C and 15N NMR study of 2,3-diphenyl-1,
13C and 15N NMR study of 2,3-diphenyl-1,2,3,4-tetrazolium-5-aminides
✍ Wiktor Koźwińnski; Jaroslaw Jaźzwiński; Lech Stefaniak 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 210 KB

## Abstract ^13^C, ^14^N and ^15^N NMR data are reported for some mesoionic 2,3‐diphenyltetrazoles with nitrogen‐containing exocyclic groups, and the data confirm their cyclic structures. The protonated forms of these mesoionic structures contain hydrogen atoms at the exocyclic groups.