13 C NMR spectra of benzothiazepinone, benzothiazinone and benzosulphonamide  N ‐substituted derivatives | Zendy

Stassinopoulou C. I. | Zendy; Catsoulacos P. | Zendy; Camoutsis Ch. | Zendy

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13 C NMR spectra of benzothiazepinone, benzothiazinone and benzosulphonamide N ‐substituted derivatives

Author(s) -

Stassinopoulou C. I.,

Catsoulacos P.,

Camoutsis Ch.

Publication year - 1983

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/omr.1270210309

Subject(s) - chemical shift , chemistry , ring (chemistry) , spectral line , coupling constant , nmr spectra database , carbon 13 nmr , proton , sulfur , crystallography , computational chemistry , stereochemistry , organic chemistry , physics , nuclear physics , particle physics , astronomy

A comparative study of the 13 C NMR spectra of benzothiazinone and benzothiazepinone dioxide derivatives and of some structurally related benzosulphonamides is presented. The size of the heterocyclic ring is reflected in the 13 C chemical shifts and in the one‐bond carbon‐proton aromatic coupling constants. An upfield γ‐effect of sulphur on the 13 C chemical shifts in N ‐substituted carboxyethylbenzene‐4,5‐dimethoxysulphonamides is reported.

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