Tehran University of Medical Sciences

Science Communicator Platform

Stay connected! Follow us on X network (Twitter):
Share By
Synthesis and Characterization of Γ-Fe2o3@Sio2-(Ch2)3-Pdtc-Pd Magnetic Nanoparticles: A New and Highly Active Catalyst for the Heck/Sonogashira Coupling Reactions Publisher



Tashrifi Z1 ; Bahadorikhalili S2 ; Lijan H3 ; Ansari S4 ; Hamedifar H4 ; Mahdavi M5
Authors

Source: New Journal of Chemistry Published:2019


Abstract

In this research, the synthesis and characterization of a novel catalyst is reported based on the preparation of the Pd complex of (pyridin-2-ylmethyl)dithiocarbamate (PDTC) supported on γ-Fe2O3@SiO2 magnetic nanoparticles (γ-Fe2O3@SiO2-(CH2)3-PDTC-Pd). The catalyst is characterized by scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, thermogravimetric analysis, Fourier transform infrared spectroscopy, inductively coupled plasma analysis, X-ray powder diffraction, X-ray photoelectron spectroscopy, and vibrating-sample magnetometer measurements. The catalytic performance of γ-Fe2O3@SiO2-(CH2)3-PDTC-Pd was evaluated in the Heck/Sonogashira coupling reactions of various aryl halides with various alkenes/phenylacetylene in water. The synthesized nanocatalyst showed a high catalytic activity even in very small amounts (5 mg, less than 0.1 mol%), was easily separated using magnetic decantation and was reused for ten cycles without any appreciable loss of its reactivity. © 2019 The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
Other Related Docs