Javad Safari

Zohre Zarnegar

Comptes Rendus Chimie

Graphical Abstract (Immobilized ionic liquid on superparamagnetic nanoparticles as effective catalyst for synthesis of tetrasubstituted imidazoles under solvent-free conditions and microwave irradiationJavad Safari*, Zohre Zarnegar we report immobilization of 1-methyl-3-(3-trimethoxysilylpropyl) imidazolium chloride on the magnetic Fe3O4 nanoparticles, as a new heterogeneous catalyst for the synthesis of 1,2,4,5-tetrasubstituted imidazoles via one-pot condensation of 1,2-diketone with aldehyde, amine, and NH4OAc in the presence of IL-MNPs as an inexpensive solid acid catalyst under solvent-free classical heating conditions or using microwave irradiation. The heterogeneous catalyst could be recovered easily and reused many times without significant loss of its catalytic activity Furthermore, the catalyst could be magnetically isolated with a permanent magnet and the yields achieved above 90% after reused at least 5 times.)	

Immobilized ionic liquid on superparamagnetic nanoparticles as an effective catalyst for the synthesis of tetrasubstituted imidazoles under solvent-free conditions and microwave irradiation

https://comptes-rendus.academie-sciences.fr/chimie/article/10.1016/j.crci.2013.01.019/file/attach/mmc2.docx

Immobilized ionic liquid on superparamagnetic nanoparticles as an effective catalyst for the synthesis of tetrasubstituted imidazoles under solvent-free conditions and microwave irradiation

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Comptes Rendus Chimie