The Schiff's bases 2-alkyl-4-oxo-3,4-dihydro-2H-1,2-benzothiazine 1,1-dioxides have been synthesized for the first time, their structures in solution and in the crystalline state and their ability to form complexes have been investigated. The unusual condensation reaction of 1,2-benzothiazine 1,1-dioxide with ethyl orthoformate and 4-aminoantipyrine has been observed.
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Translated from Khimiya Geterotsklicheskikh Soedinenii, No. 5, 755-760, May, 2010.
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Korshunov, O.Y., Sennikova, E.V., Lysenko, K.A. et al. Azomethyne derivatives of 1,3-benzothiazine 1,1-dioxide. Chem Heterocycl Comp 46, 600–604 (2010). https://doi.org/10.1007/s10593-010-0551-9
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DOI: https://doi.org/10.1007/s10593-010-0551-9