OICC Press Journal of Nanostructure in Chemistry 2193-8865 7 4 (December 2017) 2017 09 25 Synthesis and characterization of magnetically recoverable 1-(copperferritesiloxypropyl)-3-methylimidazolium heteropolytungstate ionic liquid as a new nanocatalyst for the preparation of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones 10.1007/s40097-017-0241-6 EN Hamid Reza Saadati-Moshtaghin Department of Chemistry, School of Science, Hakim Sabzevari University, Sabzevar, 96179-76487, IR Farrokhzad Mohammadi Zonoz Department of Chemistry, School of Science, Hakim Sabzevari University, Sabzevar, 96179-76487, IR Journal Article 2017 09 25 Abstract A novel, efficient and magnetically recoverable nanomaterial consisting of heteropoly acid supported on ionic liquid-modified copper ferrite nanoparticle was prepared and performed as a heterogeneous catalyst in the fast and convenient synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-dione derivatives under mild and solvent-free conditions. The synthesized nanomaterial was characterized with FT-IR, XRD, FESEM, TEM, ICP and VSM. Furthermore, the obtained nanomaterial displayed striking reusability in the titled catalytic reaction. Compared with the various previously reported catalysts, the newly synthesized nanocatalyst is found to be most efficient with regard to operation simplicity, reaction time, yield and ease of catalyst separation.