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Jugraj Jatav*, Ruchi Gupta, Santosh Kumar Bhardwaj Department of Chemistry, Jiwaji University, 474011 Gwalior, M.P. India A B S T R A C T Zn/Al hydrotalcite acts as an efficient heterogeneous basic catalyst for the synthesis of 4H-pyrano[2,3-c] pyrazoles via a multi-component reaction of  hydrazine hydrate, ethyl acetoacetate, aldehydes, and malononitrile in ethanol at ambient temperature. The hydrotalcite catalyst was ... Read More »