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ChemInform Abstract: Synthesis of New 2-Substituted-pyrazolo[4′,3′:5,6]pyrano[3,2-e][1,2,4]triazolo [1,5-c]pyrimidine Derivatives. by S. M. HASSAN; M. M. KHAFAGY; H. A. EMAN; A. A. EL-MAGHRABY is a Chemistry article available to read on EtoBox.

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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). Preparation of (VI) is improved using triethyl orthoformate instead of formic acid.

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Author

S. M. HASSAN; M. M. KHAFAGY; H. A. EMAN; A. A. EL-MAGHRABY

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Wiley (ISSN 0931-7597)

Published

1998

Language

EN

Field

Chemistry (Physical Sciences)