Nano-magnetite as an Eco-friendly and Magnetically Separable Catalyst for a One-pot Synthesis of Pyrano [2, 3-c]pyrazoles and Bis(4-hydroxycoumarin-3-yl)methane Derivatives 


Department of Chemistry, School of Science, Alzahra University, P.O. Box 1993891176, Vanak, Tehran, Iran


A facile and environmentally benign procedure for the synthesis of pyranopyrazoles and biscoumarin derivatives, using non-toxic and magnetically separable catalyst in water as green solvent, is reported.