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Gold-Decorated 3D 2,6-diaminopyridine network: a robust catalyst for the bromination of aromatic compounds
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Gold-Decorated 3D 2,6-diaminopyridine network: a robust catalyst for the bromination of aromatic compounds

Pourjavadi, A

Gold-Decorated 3D 2,6-diaminopyridine network: a robust catalyst for the bromination of aromatic compounds

Pourjavadi, A ; Sharif University of Technology | 2018

572 Viewed
  1. Type of Document: Article
  2. DOI: 10.1021/acs.iecr.8b01179
  3. Publisher: American Chemical Society , 2018
  4. Abstract:
  5. This article reports the synthesis of a magnetic heterogeneous catalyst through the decoration of gold ions onto the cross-linked polymeric nanocomposite from 2,6-diaminopyridine. The activity of the resulting catalyst was then evaluated in the bromination of aromatic compounds. The nitrogen rich support showed a high affinity to gold ions, and the measured content of Au was 0.76 mmol g-1. The structure of the catalyst was fully characterized by using Fourier-transform infrared spectroscopy, thermogravimetric analysis, atomic absorption spectroscopy, transmission electron microscopy, scanning electron microscope, energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller surface area analysis, a vibrating sample magnetometer, and X-ray diffraction techniques. Various substituted arenes were converted to the corresponding Br-containing aromatic compounds in a good to excellent yield using 300 mg of catalyst. It is worth mentioning, that the catalyst was simply collected from the solution and reused in eight cycles without significant loss of its activity. © 2018 American Chemical Society
  6. Keywords:
  7. Absorption spectroscopy ; Aromatic compounds ; Aromatization ; Bromine compounds ; Energy dispersive spectroscopy ; Fourier transform infrared spectroscopy ; Gold ; High resolution transmission electron microscopy ; Scanning electron microscopy ; Spectrum analysis ; Thermogravimetric analysis ; Transmission electron microscopy ; Atomic absorption spectroscopy ; Brunauer-emmett-teller surface areas ; Energy dispersive X ray spectroscopy ; Heterogeneous catalyst ; Polymeric nanocomposites ; Transmission electron ; Vibrating sample magnetometer ; X-ray diffraction techniques ; Catalyst activity
  8. Source: Industrial and Engineering Chemistry Research ; Volume 57, Issue 37 , 2018 , Pages 12314-12322 ; 08885885 (ISSN)
  9. URL: https://pubs.acs.org/doi/10.1021/acs.iecr.8b01179