Synthesis of Some New Fused and Polyfused [1,2,4]Triazolo-[3,4-<Emphasis Type="Italic">b</Emphasis>][1,3,4]thiadiazepines |
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Authors: | O A Abd Allah |
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Institution: | (1) Chemistry Department, Faculty of Science, Sohag, Egypt |
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Abstract: | 7-1,3-Dithiolan-2-ylidene]-3-phenyl-5,6,7,8-tetrahydro1,2,4]triazolo3,4-b]1,3,4]thiadiazepine-6,8-dione and 7-5-oxo-1,3-dithiolan-2-ylidene]-3-phenyl-5,6,7,8-tetrahydro1,2,4]triazolo3,4-b]1,3,4]-thiadiazepine-6,8-diones
were obtained by treating 3-phenyl-5,6,7,8-tetrahydro1,2,4]triazolo-3,4-b]1,3,4]thiadiazepine-6,8-diones with CS2 and chloroacetyl chloride, respectively. Treatment of the above compounds with mercaptoacetic acid gave 1,2-dibromoethane
or the corresponding spiro polyfused heterocycles. Some other triazolothiadiazepine derivatives including spiro polyfused
compounds were also synthesized.
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Published in Khimiya Geterotsiklicheskikh Soedinenii, No. 8, 1256–1264, August, 2005. |
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Keywords: | 1 2 4-triazolo[3 4-b]-1 3 4-thiadiazepines spiro compounds |
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