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SYNTHESIS OF FUSED PYRAZOLO[1,5-a]PYRIMIDINE DERIVATIVES UNDER MICROWAVE IRRADIATION AND ULTRASOUND, AS ECOFRIENDLY ENERGY SOURCES
Journal article   Peer reviewed

SYNTHESIS OF FUSED PYRAZOLO[1,5-a]PYRIMIDINE DERIVATIVES UNDER MICROWAVE IRRADIATION AND ULTRASOUND, AS ECOFRIENDLY ENERGY SOURCES

Khadijah M. Al-Zaydi
Heterocycles, Vol.78(8), pp.2003-2012
01/01/2009
DOI: https://doi.org/10.3987/COM-09-11686

Abstract

Chemistry Chemistry, Organic Physical Sciences Science & Technology
4-(4-Chlorophenylazo)-1H-pyrazole-3,5-diamine reacted with ethyl acetoacetate, benzylidenemalononitrile, ethyl propiolate and malononitrile under microwave irradiation to afford pyrazolo[1,5-a]pyrimidine derivatives in high yields. The structures of compounds were confirmed by H-1, C-13 NMR, MS, elemental analyses and X-ray crystallography.

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