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13 C NMR spectra of 1,3,4‐thiadiazole/thiadiazoline isomeric pairs
Author(s) -
Rackham David M.,
Morgan Sarah E.,
Williamson W. R. Nigel
Publication year - 1980
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270140617
Subject(s) - azole , carbon 13 nmr , chemistry , spectral line , chemical shift , ring (chemistry) , decoupling (probability) , nmr spectra database , computational chemistry , stereochemistry , organic chemistry , physics , antifungal , medicine , dermatology , astronomy , control engineering , engineering
The 13 C NMR spectra of four pairs of 1,3,4‐thiadiazole/thiadiazoline isomers have been recorded using broad band and off‐resonance proton decoupling techniques and in the coupled mode. Differences in the chemical shifts of the heterocyclic ring and the carbonyl carbons allow identification of the isomer present. Their IR and UV spectra are in agreement with literature reports for azole/azoline analogues.