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Multinuclear magnetic resonance study of some mesoionic 1,3-diphenyltetrazoles with various exocyclic groups

✍ Scribed by Wojciech Bocian; Jaroslaw Jaźwiński; Wiktor Koźmiński; Lech Stefaniak; Graham A. Webb

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
294 KB
Volume
32
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

^1^H, ^13^C, ^14^N and ^15^N NMR methods were applied to the study of some Type A mesoionic 1,3‐diphenyltetrazoles with various exocyclic groups. The ring structures of these tetrazoles are confirmed by the nitrogen NMR data. The shielding of N‐4 increases consecutively by amounts of ca 10 ppm as the bonded exocyclic atom changes from S to C to O.

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