Preparation, characterization, and first catalytic application of a novel phosphotungstic acid-containing ionic liquid immobilized on CuFe2O4@SiO2 magnetic nanoparticles in the ... View Full Text


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Article Info

DATE

2017-10

AUTHORS

N. Hosseininasab, A. Davoodnia, F. Rostami-Charati, A. Khojastehnezhad

ABSTRACT

A novel heterogeneous acidic ionic liquid based on functionalized imidazolium salt of phosphotungstic acid (H3PW12O40, denoted as PW), immobilized on CuFe2O4@SiO2 magnetic nanoparticles, denoted as CuFe2O4@SiO2@C3-Imid-C4SO3-PW, was prepared and characterized using FT-IR, SEM, EDX, and VSM techniques. High activity of the prepared material as a novel catalyst was evaluated in one-pot synthesis of 1H-pyrazolo[1,2-b]phthalazine-5,10-diones by reaction of phthalhydrazide with an aromatic aldehyde and malononitrile under solvent-free conditions. The process gave high yields of the products over short reaction time. The catalyst was efficiently recovered by magnetic decantation and used repeatedly without significant loss of its activity. More... »

PAGES

2436-2443

References to SciGraph publications

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  • 2016-12. A comparative study of TiO2, Al2O3, and Fe3O4 nanoparticles as reusable heterogeneous catalysts in the synthesis of tetrahydrobenzo[a]xanthene-11-ones in RUSSIAN JOURNAL OF GENERAL CHEMISTRY
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