Palladium nanoparticles immobilized on Schiff base ‐functionalized mesoporous silica as a highly efficient and magnetically recoverable nanocatalyst for Heck coupling reaction

A new magnetically recoverable nanocatalyst was prepared by functionalization of mesoporous silica (SBA ‐15) with a Schiff‐base ligand and then, immobilization of Palladium nanoparticles on it. This catalyst was characterized and used in Heck reaction. A new magnetically recoverable nanocatalyst was prepared by functionalization of mesoporous silica (SBA ‐15) with a Schiff base ligand, and then immobilization of palladium nanoparticles on it using a simple procedure. This heterogeneous catalyst was fully characterized using appropriate analyses and its catalytic efficiency was investigated in Heck reaction using iodo‐, bromo‐ and chlorobenzene derivatives and styrene, with the aim of synthesizing stilbene derivatives, a class of compounds with a variety of pharmacological properties. Some of the characteristics of this nanocatalyst include good dispersion of palladium nanoparticles on the SBA‐15 support, easy separation, catalyses the production of stilbene derivatives in a short time with excellent yields even for bromo‐ and chlorobenzene, and preservation of its catalytic activity after eight reaction cycles.

Source: Applied Organometallic Chemistry - October 22, 2018 Category: Chemistry Authors: Mohammad Mehdi Khodaei, Mahsa Dehghan Tags: FULL PAPER Source Type: research