77697-00-8Relevant articles and documents
13C NMR Analysis of some 4-Hydroxy-2H-1,2-benzothiazine 1,1-Dioxides
Schapira, Celia B.,Perillo, Isabel A.
, p. 1051 - 1056 (2007/10/02)
The 13C 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 13C nmr spectra.Spectral data support the enolic structure of these compounds.