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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
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Authors Affiliations
  1. 1. Department of Chemistry, University of Guilan, PO Box 41335-1914, Rasht, Iran
  2. 2. Institute of Mechanics, Iranian Space Research Center, Shiraz, Iran
  3. 3. School of Chemistry, College of Science, University of Tehran, Tehran, Iran
  4. 4. CinnaGen Medical Biotechnology Research Center, Alborz University of Medical Sciences, Karaj, Iran
  5. 5. Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran

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.