- One step synthesis of highly functionalized thiazolo[3,2-b][1,2,4]triazole, triazolo[1,5-a]pyrimidine and triazolo[3,4-b][1,3,4]thiadiazine
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An efficient and straightforward methodology for the preparation of novel functionalized thiazolo[3,2-b]triazole, triazolo[1,5-a]pyrimidine and triazolo[3,4-b][1,3,4]thiadiazine has been implemented with excellent yields via a one-pot catalyst-free proced
- Shah, Tariq A.,Ahmad, Zubair,Mir, Niyaz A.,Muneer,Rath, Nigam P.,Ahmad, Musheer
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p. 107931 - 107937
(2015)
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- Synthesis of some 1,2,4-triazolo[3,2-b]-1,3-thiazine-7-ones with potential analgesic and antiinflammatory activities
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Starting from 3-substituted-1,2,4-triazole-5-thiones (1a-h), eight new 5-carbomethoxy-2-substituted-7 H-1,2,4-triazolo[3,2-b]-1,3-thiazine-7-ones (2a-h) were synthesized and characterized by spectral and elementary analysis. The obtained compounds were su
- Tozkoparan, Birsen,Aktay, Goeknur,Yesilada, Erdem
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- Synthesis and transformations of 5-substituted 2-aryl-7H-[1,2,4]triazolo[3, 2-b][1,3]thiazin-7-ones and 2-aryl-2,3-dihydro-4H-[1,3]thiazino[3,2-a] benzimidazol-4-ones
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3-Aryl-1,2,4-triazole-5-thiones react with dimethyl acetylenedicarboxylate and methyl 3-phenyl-propynoate to afford the corresponding 5-substituted 2-aryl-7H-[1,2,4]triazolo[3,2-b][1,3]thiazin-7-ones. Treatment of 2-aryl-2,3-dihydro-4H-[1,3]thiazino[3,2-a]benzimidazol-4-ones with alkalies leads to formation of 3-(benzimidazol-2-ylsulfanyl)-3-arylpropionic acids, their reaction with methyl p-toluenesulfonate yields 1-(3-methyl-2-thioxo-2,3- dihydro-1N-benzimidazol-1-yl)-3-phenyl-2-propen-1-one, and oxidation with hydrogen peroxide gives benzimidazole-2-sulfonic acid and 3-aryl-2-propenoic acids. 2005 Pleiades Publishing, Inc.
- Britsun,Esipenko,Chernega,Lozinskii
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p. 108 - 113
(2007/10/03)
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