Microwave synthesis of new azolyl-substituted thiazolo[5,4-d]thiazoles |
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| Authors: | L. K. Papernaya A. A. Shatrova A. V. Kletskov S. K. Petkevich I. V. Sterkhova L. V. Klyba G. G. Levkovskaya |
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| Affiliation: | 1.Favorskii Irkutsk Institute of Chemistry, Siberian Branch,Russian Academy of Sciences,Irkutsk,Russia;2.Institute of Physical Organic Chemistry,National Academy of Sciences of Belarus,Minsk,Belarus |
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| Abstract: | One-pot condensation of dithiooxamide with 4,5-dichloro-1,2-thiazole-3-carbaldehyde and 5-phenyl-1,2-oxazole-3-carbaldehyde, followed by oxidation of intermediate 2,5-dihydro[1,3]thiazolo[5,4-d]-[1,3]thiazoles with selenium dioxide, afforded previously unknown 2,5-bis(4,5-dichloro-1,2-thiazol-3-yl)- and 2,5-bis(5-phenyl-1,2-oxazol-3-yl)[1,3]thiazolo[5,4-d][1,3]thiazoles as first representative of bis-isothiazolyl- and bis-isoxazolyl thiazolothiazoles. |
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