Synthesis, Characterization and Evaluation of Antioxidant Activity of Some New Benzothiazine Derivatives
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چکیده
This article discloses the synthesis and characterization of novel benzothiazine derivatives obtained via condensation followed by cyclization of substituted 2-aminobenzenethiols with oxalic acid and ethyl malonate respectively. Their sulfone derivatives were prepared via reacting them with KMnO4 in glacial acetic acid. The structure of the compounds were confirmed by spectral studies (IR, H NMR, C NMR & MS). The compounds were evaluated for their antioxidant activity using DPPH assays.
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تاریخ انتشار 2015