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13 C and 77 Se NMR spectra of thienoisoselenazoles, selenoloisothiazoles, selenoloisoselenazoles and thienoisothiazoles
Author(s) -
Onyamboko N. V.,
Renson M.,
Chapelle S.,
Granger P.
Publication year - 1982
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.1270190205
Subject(s) - isothiazole , coupling constant , nmr spectra database , chemical shift , ring (chemistry) , spectral line , chemistry , thiophene , carbon 13 nmr , crystallography , computational chemistry , stereochemistry , physics , medicinal chemistry , organic chemistry , particle physics , astronomy
The 13 C and 77 Se NMR spectra of eight new unsubstituted biheterocycles containing a thiophene or selenophene ring condensed with an isothiazole or isoselenazole ring were recorded. The assignments of the 13 C signals were made by the examination of chemical shifts, 1 J (CH) coupling constants and, for the quaternary carbons, on the basis of 1 J (C, 77 Se) coupling constants. The results are compared and discussed.