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METAL CHELATES OF NEW LIGANDS: 1,2-BENZOTHIAZINE-1,1-DIOXIDE DERIVATIVES

✍ Scribed by Bicherov, A. V.; Kharisov, B. I.; Blanco, L. M.; Korshunov, O. Yu.; Koroleva, E. L.; Burlov, A. S.; Borodkin, G. S.; Kurbatov, V. P.; Uflyand, I. E.; Garnovskii, A. D.

Book ID
121435074
Publisher
Taylor and Francis Group
Year
2001
Tongue
English
Weight
280 KB
Volume
54
Category
Article
ISSN
0095-8972

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## Abstract A novel facile photoconversion of 4‐hydroxy‐1,2‐bezothiazine 1,1‐dioxides (**3a‐e**) into 4‐__oxo__‐1,3‐2__H__‐benzothiazine 1,1‐dioxides (**4a‐e**) and 4‐hydroxy‐2‐methyl‐__N__‐(pyridin‐2‐yl)‐2__H__‐1,2‐benzothiazine‐3‐carboxamide 1,1‐dioxide (PRX) into N‐methyl saccharin (**2**) upon