A novel bi-functional metal/solid acid catalyst for the direct reductive amination of nitroarenes synthesized on a resistant mesoporous carbon (CMK-8) support
Autor: | Seyedeh Fardokht Rezayi, Roozbeh Javad Kalbasi |
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Rok vydání: | 2018 |
Předmět: |
chemistry.chemical_classification
Materials science Nanocomposite Reducing agent Mechanical Engineering chemistry.chemical_element 02 engineering and technology Sulfonic acid 010402 general chemistry 021001 nanoscience & nanotechnology Heterogeneous catalysis 01 natural sciences Reductive amination 0104 chemical sciences Catalysis Nickel chemistry Chemical engineering Mechanics of Materials General Materials Science 0210 nano-technology Mesoporous material |
Zdroj: | Journal of Porous Materials. 26:641-654 |
ISSN: | 1573-4854 1380-2224 |
DOI: | 10.1007/s10934-018-0666-4 |
Popis: | A metal–acid bi-functional catalyst based on nickel nanoparticles and polystyrene sulfonic acid chains anchored on ordered mesoporous carbon CMK-8 was synthesized through a simple method. This nanocomposite was condignly exploited as a novel metal–solid acid bi-functional heterogeneous catalyst for the one-pot direct reductive amination of aldehydes with nitroarenes. NaBH4 was used as a mild reducing agent under catalytic hydrogen transfer route. Excellent yields at room temperature and short reaction time in a safe combinatorial solvent (ethanol–H2O) achieved thanks to the nickel metals and the acidic nature of polymer incorporated in mesoporous channels of CMK-8. The structural properties of the synthesized catalyst were characterized by FT-IR, XRD, TEM, BET, DRS-UV, EDX-Mapping and ICP techniques. Besides being eco-friendly, the method has several advantages such as simple work-up procedure and moderate to high-yield. Reusability of the catalyst explicates the acceptable stability of the nanocomposite after ten runs without noticeable loss of activity. |
Databáze: | OpenAIRE |
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