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Applications of 15 N NMR to a study of tautomerism in some monocyclic azoles
Author(s) -
BojarskaOlejnik E.,
Stefaniak L.,
Witanowski M.,
Hamdi B. T.,
Webb G. A.
Publication year - 1985
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260230307
Subject(s) - tautomer , tetrazole , chemistry , imidazole , electromagnetic shielding , computational chemistry , proton nmr , stereochemistry , electrical engineering , engineering
Abstract 15 N NMR shielding measurements reveal that thiolo‐imidazole and ‐tetrazole exist almost entirely as the thione form. Quantitative estimates of the position of tautomerism in 1,2,3‐triazole and tetrazole are obtained. The reported assignments are supported by means of INDO/S‐SOS shielding calculations.