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CuI catalyst heterogenized on melamine-pyridines immobilized SBA-15: Heterogeneous and recyclable nanocatalyst for Ullmann-type CN coupling reactions
Authors:Hojat Veisi  Mona Hamelian  Saba Hemmati  Akram Dalvand
Institution:1. Department of Chemistry, Payame Noor University (PNU), Tehran, Iran;2. Research Center of Oils and Fats, Kermanshah University of Medical Sciences, Kermanshah, Iran;3. Department of Chemical Engineering, Doroud Branch, Islamic Azad University, Doroud, Iran
Abstract:The present study reports the procedure conducted in SBA-15/CCPy/CuI preparation as a new Mesoporous nanocatalyst, whereas melamine bearing pyridine groups on SBA-15 are used to secure CuI catalyst as capping agent. The resultant catalyst was specified by conducting TEM, FESEM, WDX, ICP, and EDS. The SBA-15/CCPy/CuI catalytic behavior was studied to N-arylation of indole, imidazole, pyrazole, benzyl amine, and aniline by coupling reactions of Ullmann-type C/>N. Also, the heterogeneous catalyst may simply be recovered via filtration and used again for seven cycles with no considerable loss in activity. The findings revealed the privileges of the present method, including the high product yield, experimental simplicity, low catalyst loading, broad substrate scope, and short reaction times.</td>
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Keywords:Mesoporous  Ullmann  Heterogeneous nanocatalyst  Cupper  Indole  Imidazole
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