Interaction of aminoazoles with Meldrum's acid and dialkyl ketones or cyclohexanone

…, VV Borodina, MG Shirobokova, SM Desenko…

文献索引：Lipson; Borodina; Shirobokova; Desenko; Shishkin; Zubatyuk Chemistry of Heterocyclic Compounds, 2007 , vol. 43, # 4 p. 490 - 495

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被引用次数: 5

摘要

Abstract Interaction of 3-amino-5-methylpyrazole, 3-amino-5-methylthio-, and 3, 5-diamino- 1, 2, 4-triazole with Meldrum's acid, acetone, ethyl methyl ketone, and cyclohexanone leads to alkyl-substituted pyrazolo [3, 4-b] pyridin-6-ones and 1, 2, 4-triazolo [1, 5-a] pyrimidin-7- ones respectively. The structure of 5, 5-dimethyl-2-methylthio-4, 5, 6, 7-tetrahydro-1, 2, 4- triazolo [1, 5-a] pyrimidin-7-one was demonstrated by an X-ray structural investigation.