Nitriles in Heterocyclic Synthesis. A Novel Synthesis of 4-Phenacylpyrazole and Pyrrolo[2,3-<i>c</i>]pyrazole Derivatives
作者:Fathy Mohamed Abdelrazek、Ayman Wahba Erian、Khalid Mohamed Hassan Hilmy
DOI:10.1055/s-1986-31484
日期:——
3,5-Diamino-4-phenacyclpyrazoles are prepared by reaction of phenacylmalononitrile with hydrazine or phenylhydrazine. Further reaction of the 3,5-diamino-4-phenacylpyrazoles with trichloroacetonitrile provides a novel synthesis of 1,6-dihydropyrrolo[2,3-c]pyrazoles.
3,5-二氨基-4-苯环吡唑是通过苯甲酰基丙二腈与肼或苯肼反应制备的。 3,5-二氨基-4-苯甲酰基吡唑与三氯乙腈的进一步反应提供了1,6-二氢吡咯并[2,3-c]吡唑的新合成。