Ionic liquid matrix-immobilized, magnetic activated carbon: Application as recyclablecatalyst for synthesis of diazepin derivatives

A novel activated carbon-based magnetic nanomaterial, ionic liquid-modified magnetic activated carbon (Fe۳O۴NPs@AC), was prepared and then used as an efficient catalyst. The use of Fe۳O۴ NPs@AC-IL as an efficient reusableheterogeneous catalyst allows one-pot synthesis of diazepin derivatives under mild condition in high yields from substitutedaldehydes, ortho phenylenediamine and coumarin. Operational simplicity, low cost, high yields, eco-friendly reactionconditions, economical catalyst, reusability and easy recovery of the catalyst make this procedure greener than the otherreported works.

کلیدواژه ها:

Catalyst ، Magnetic activated carbon ، Ionic liquid.