Tribromide ion supported on boehmite nanoparticles as a reusable catalyst for organic reactions
作者： Arash Ghorbani-Choghamarani , Zeinab Seydyosefi , Bahman Tahmasbi
DOI: 10.1016/J.CRCI.2018.09.001
关键词: Thermogravimetric analysis 、 Nanoparticle 、 Catalysis 、 Organic reaction 、 Fourier transform infrared spectroscopy 、 Materials science 、 Tribromide 、 Inert gas 、 Chemical engineering 、 Boehmite
摘要: Abstract Boehmite nanoparticles are not air or moisture sensitive; therefore, they were prepared in water at room temperature using inexpensive materials, without inert atmosphere, by a very simple and procedure. When the surface of boehmite was modified N,N,N′,N′-tetraethyldiethylenetriamine (TEDETA), tribromide ions became immobilized on (Br3-TEDETA@Boehmite). These materials characterized Fourier transform infrared spectroscopy, thermogravimetric analysis, Brunauer–Emmett–Teller, X-ray diffraction, energy-dispersive scanning electron microscopy techniques. Finally, catalytic activity Br3-TEDETA@Boehmite examined selective oxidation sulfides to sulfoxides. Besides, extended synthesis organic heterocyclic compounds, such as 2,3-dihydroquinazolin-4(1H)-one polyhydroquinoline derivatives. This catalyst reused several times significant loss its efficiency.
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