Journal of heterocyclic chemistry

13C NMR Analysis of some 4??hydroxy??2H??1, 2??benzothiazine 1, 1??dioxides

CB Schapira, IA Perillo

Index: Schapira, Celia B.; Perillo, Isabel A. Journal of Heterocyclic Chemistry, 1993 , vol. 30, # 4 p. 1051 - 1056

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Citation Number: 2

Abstract

Abstract The 13 C nmr spectra of some 4-hydroxy-2H-1, 2-benzothiazine 1, 1-dioxides I have been recorded and analyzed. Spectroscopic assignments were made on the basis of chemical shift theory, APT and fully coupled 13 C nmr spectra. Spectral data support the enolic structure of these compounds.