91099-31-9Relevant academic research and scientific papers
Studies on Heterocyclic Amidines: Synthesis of new Azaindene Derivatives
Elnagdi, Mohamed H.,Sadek, Kamal U.,Galil, Fathy M. A.,Hassan, Sanaa M. E.
, p. 851 - 854 (2007/10/02)
Several new pyrazolopyrimidines and pyrazolo-1,2,4-triazine derivatives were synthesized from 3(5)-aminopyrazoles 1a, b as starting components.
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 (2007/10/02)
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
