Water-Dispersible Pd–N-Heterocyclic Carbene Complex Immobilized on Magnetic Nanoparticles as a New Heterogeneous Catalyst for Fluoride-Free Hiyama, Suzuki–Miyaura and Cyanation Reactions in Aqueous Media

Pd–N-heterocyclic carbine complex immobilized on magnetic nanoparticles is synthesized and characterized by different techniques such as FT-IR, XPS, TEM, EDX, FESEM, VSM, TGA, ICP. The catalyst was used a new water dispersible heterogeneous in the fluoride-free Hiyama, Suzuki–Miyaura cyanation reactions pure water. By this method, types of biaryls aryl nitriles were good to high yields reaction variety iodides, bromides chlorides with triethoxyphenylsilane, phenylboronic acid K4[Fe(CN)6]·3H2O, respectively. presence sulfonates hydrophilic groups surface confers highly dispersible, active yet magnetically recoverable Pd catalyst. possibility perform green medium, ease recovery reuse separation, absence any additives or co-solvents make method an eco-friendly economical protocol for synthesis biaryl derivatives nitriles. A carbene efficient developed.