91099-32-0Relevant articles and documents
Studies on 5-Aminopyrazole Derivatives. Synthesis of Some New Fused Pyrazole Derivatives
Zayed, Ezzat Mohamed,Ghozlan, Said Ahmed Soliman,Ibrahim, Abdel-Azim Hady
, p. 431 - 436 (1984)
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--pyrimidine (2).With urea, thiourea and ethyl acetoacetate 1 gives the pyrazolopyrimidine derivatives 6a, 6b