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Preparation of Copper Salt of Para-amino Benzoic Acid Supported on Graphene Oxide as a Nanocatalyst and its Application in Some Organic Reactions

Roknizadeh, Mostafa | 2019

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 51678 (03)
  4. University: Sharif University of Technology
  5. Department: Chemistry
  6. Advisor(s): Mahmoodi Hashemi, Mohammad
  7. Abstract:
  8. The purpose of this study is to prepare a catalyst for copper nanoparticles that can be used in C-H activation processes in order to increase copper salt catalytic processes by converting it into a catalyst with characteristics of having recovery cycles, convenient separation and environmental friendliness and being in nano size. Consequently, copper nanoparticles are directly grafted onto graphene oxide, or using para-aminobenzoic acid grafted on graphene oxide. A copper nanoparticle catalyst was used in the reaction to activate the C(sp2)-H bonds of benzoxazole molecule and C-N bonds formation with secendary amines. Using the results of transition electron microscopy (TEM), scanning electron microscopy (SEM), infrared spectroscopy (IR and FT-IR), X-ray diffraction spectroscopy (XRD), X-ray diffraction spectrometry (EDX), and ultraviolet spectroscopy (UV), the structure of the prepared nanocatalytics was confirmed and the results of the nuclear resonance spectra of carbon and hydrogen (1H-NMR & 13C-NMR) confirmed the application of this nanocatalist in the oxidative reaction. The results of this project include the provision of a four-time recovery, an efficiency of 84% in oxidative reactions, reduce copper metal loss in salt catalyst by loading on catalytic supports, a convenient separation by filtration or precipitation and a nanocatalytic feature dispersion in a water solvent that is environmentally friendly
  9. Keywords:
  10. Nano Catalyst ; Graphene Oxide ; Copper Nanoparticles ; Para-Amino Benzoic Acid ; Carbon-Hydrogen Bond Activation ; Carbon-Nitrogen Bond Formation

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