Studies on the reaction of 3-substituted
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Zhao Guo-Feng; Yang Hua-Zheng
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Article
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2010
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John Wiley and Sons
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English
⚖ 286 KB
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The reaction of 3-substituted-4-hydroxyroxy-2H-1,2-be~othiazine 1,l-dioxides with aryl isocyanate under different equivalents of strong base NaH was studied. Seventeen of new derivatives were obtained whose structures were characterized by ' H NMR, IR, MS, elementary analysis and FeCls test. ## Key