Ionic liquid-loaded triazine-based magnetic nanoparticles for promoting multicomponent reaction.

A novel hybrid magnetic ionic-liquid as a heterogeneous catalyst was synthesized by hybridization of imidazolium based-ionic liquid onto the nitrogen rich magnetic nanocomposite. The resulting catalyst (n-FeO@SiO-TA-SOH IL) has two advantages besides recyclability: (i) high capacity of functional-SOH group with imidazolium-IL cation for promoting symmetric and asymmetric Hantzsch reaction and (ii) easy recovery. Caused by the polymeric and magnetic nature of the n-FeO@SiO-TA-SOH IL, large quantities of acidic groups were bound to the n-FeO@SiO-TA surface, which reduced the catalyst mass applied to the catalytic reaction. Moreover, superior catalytic performance and outstanding recyclability of n-FeO@SiO-TA-SOH IL in mild condition make this method a green pathway for manufacture of satisfactory chemicals.