Transamidation of primary carboxamides, phthalimide, urea and thiourea with amines using Fe(OH)3@Fe3O4 magnetic nanoparticles as an efficient recyclable catalyst

摘要

The highly efficient transamidation of primary amides, phthalimide, urea and thiourea with amines catalyzed by magnetic Fe(OH) _(3) @Fe _(3) O _(4) nanoparticles is described. This magnetic nanocomposite is able to catalyze transamidation reactions of a wide range of the above-mentioned substrates with amines, generating a new amide bond in moderate to good yields. The catalyst exhibited very good recyclability and reusability up to five runs without significant loss of its catalytic activity.