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ChemInform Abstract: 4-Hydroxycoumarin in Heterocyclic Synthesis. Part 3. Synthesis of Some New Pyrano[2,3-d]pyrimidine, 2-Substituted[1,2,4]triazolo[1,5-c]pyrimidine and Pyrimido[1,6-b][1,2,4]triazine Derivatives.

โœ Scribed by A. H. Bedair; Nagwa A. El-Hady; M. S. Abd El-Latif; A. H. Fakery; A. M. El-Agrody


Publisher
John Wiley and Sons
Year
2001
Weight
36 KB
Volume
32
Category
Article
ISSN
0931-7597

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ChemInform Abstract: Synthesis of New 2-
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Synthesis of New 2-Substituted-pyrazolo[4',3':5,6]pyrano[3,2e][1,2,4]triazolo [1,5-c]pyrimidine Derivatives. -Starting from pyrazole (III) the pyrimidine (V) is prepared which is further treated with different carboxylic acid derivatives to form novel pyrimidines of type (VI) and (VIII). Preparatio