Synthesis p. 33 - 35 (1987)
Update date:2022-08-04
Topics: Synthesis Derivatives Hydroxylamine hydrazine Isoxazoles Pyrazoles Benzylmalononitriles Pyrazolo<1,5-a>-pyrimidine
Vaquero, Juan J.
Fuentes, Luis
Castillo, Juan C. Del
Perez, Maria I.
Garcia, Jose L.
Soto, Jose L.
Benzylmalononitriles react with hydrazine or hydroxylamine to give 4-substituted 3,5-diaminopyrazoles or isoxazoles, respectively.Pyrazolo<1,5-a>pyrimidine derivatives are prepared by reaction of these pyrazoles with some 2,3-disubstituted propenenitriles
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