CuFe2O4 and ZrP2O7 nanoparticles as highly efficient catalysts for the one-pot synthesis of phthalazine derivatives under solvent-free conditions


1 Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, P.O. Box 87317-51167, Kashan, Iran.

2 School of Chemistry, College of Science, University of Tehran, Tehran 14155-6455, Iran


ZrP2O7 and CuFe2O4 nanoparticles as ecient and reusable heterogeneous catalysts have been used for the preparation of 2H-indazolo[2,1-b]phthalazine-triones and 1H-pyrazolo[1,2-b]phthalazine-diones, respectively, under solvent-free conditions in good to excellent yields and short reaction times.