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Azomethyne derivatives of 1,3-benzothiazine 1,1-dioxide
Authors:O Yu Korshunov  E V Sennikova  K A Lysenko  G S Borodkin  A D Garnovskii
Institution:1.Scientific Research Institute of Physical and Organic Chemistry,Southern Federal University,Rostov-on-Don,Russia;2.A. N. Nesmeyanov Institute of Organoelement Compounds,Russian Academy of Sciences,Moscow,Russia
Abstract: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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