Studies on 5-Aminopyrazole Derivatives. Synthesis of Some New Fused Pyrazole Derivatives

DOI: 10.1007/BF00810004

Source and publish data:

Monatshefte fur Chemie p. 431 - 436 (1984)

Update date:2022-08-03

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Authors:

Zayed, Ezzat Mohamed

Ghozlan, Said Ahmed Soliman

Ibrahim, Abdel-Azim Hady

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Article abstract of DOI:10.1007/BF00810004

5-Amino-4-cyano-3-phenylpyrazole (1) reacts with acrylonitrile or ethyl acrylate to yield 4-cyano-3-phenyl-4,5,6,7-tetrahydro-5-oxopyrazolo-<1,5-a>-pyrimidine (2).With urea, thiourea and ethyl acetoacetate 1 gives the pyrazolopyrimidine derivatives 6a, 6b

Full text of DOI:10.1007/BF00810004

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