Synthesis and properties of 3-substituted 2h-1,2,4-benzothiadiazine 1,1-dioxides
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The ethyl ester and amides of 2H-1,2,4-benzothiadiazine-3-carboxylic acid 1,1-dioxide were obtained by reaction of 2-aminobenzenesulfonamide with diethyl oxalate or oxamic acid esters in the presence of sodium methoxide. The hydrolysis, animation, and hydrazinolysis of the ester were studied.
KeywordsSodium Ester Hydrolysis Ethyl Organic Chemistry
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