Abstract
Author(s): Jugraj Jatav, Ruchi Gupta, Santosh Bhardwaj, S.K Srivastava and D.D. Agarwal
Zn/Al hydrotalcite acts as an efficient heterogeneous basic catalyst for the synthesis of 4H-pyrano[2,3-c] pyrazoles via a multicomponent reaction of hydrazine hydrate, ethyl acetoacetate, aldehydes, and malononitrile in ethanol at ambient temperature. The hydrotalcite catalyst was easily separated from the reaction mixture and can be reused
