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Paper | Regular issue | Vol 87, No. 3, 2013, pp.559-570
Published online, 30th January, 2013
DOI: 10.3987/COM-12-12626
One-Pot Synthesis of 2H-Indazolo[2,1-b]phthalazinetrione Catalyzed by Magnetic Room Temperature Dicationic Ionic Liquid under Solvent-Free Conditions

Bijan Mombani Godajdar,* Ali Reza Kiasat, and Mohammad Mahmoodi Hashemi

*Department of Chemistry, Science and Research Branch, Islamic Azad University, P.O. Box 19395-1775 Tehran, Iran


The efficient one-pot condensation of aldehyde, dimedone, and phthalhydrazide has been achieved in the presence of a catalytic amount of Fe(III)-based dicationic ionic liquid, [C4(mim)2](FeCl4)2, as a novel environmentally benign magnetic catalyst under solvent-free conditions. The catalyst was easily separated after completion of the reaction and was recycled four times without affecting the catalytic property.