The Pd(0) Nanoparticles Stabilized by Collagen Fibers as a Recyclable Heterogeneous Catalyst for the Cyanation of Aryl Bromides Using K4Fe(CN)6 as Non-toxic Source of Cyanide

A new method for the synthesis of aryl nitriles has been developed by the cyanation of aryl bromides in the presence of the Pd(0) nanoparticles stabilized by collagen fibers as a highly active, air-stable and recyclable heterogeneous catalyst. This method has the advantages of high yields, simple methodology and easy work-up. The catalyst was recovered and reused several times without the significant loss of its catalytic performance.