Magnetic nanoparticles supported imidazolium based ionic liquids as nanocatalyst in molticomponent reactions

The magnetic Fe3O4 nanoparticles supported imidazolium based ionic liquids (MNPs-IILs) namely 1-methyl-3-(3-trimethoxysilylpropyl) imidazolium hydrogen sulfate (MNPs-IIL-HSO4), 1-methyl-3-(3-trimethoxysilylpropyl)imidazolium acetate (MNPs-IIL-OAc) and 1-methyl-3-(3-trimethoxysilylpropyl) imidazolium chloride (MNPs-IIL-Cl)used as efficient new nanocatalysts for the molticomponent reactions such as Hantzsch and Biginelli reaction, synthesisof multi-substituted imidazoles, and amidoalkyl naphthols under green conditions in excellent yields. Utilization of easyreaction conditions, catalyst with high catalytic activity and good reusability, and simple magnetically work-up, makesthis green protocol as an interesting option for the economic synthesis of organic compounds. Microwave technologyand ultrasound irradiations as eco-friendly green synthetic approach have gradually been used in these organicprocedures. Combining the advantages of the molticomponent reactions and magnetically nanocatalysts, this methodprovides an efficient and much improved modification of the molticomponent reactions

کلیدواژه ها:

Molticomponent reactions ، Biginelli reaction ، Hantzsch reaction ، Magnetic nanoparticles ، Imidazolium ionic liquid