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Copper zirconium phosphate as an efficient catalyst for multi-component reactions in solvent-free conditions | ||
| Iranian Journal of Science | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 05 بهمن 1394 | ||
| نوع مقاله: Regular Paper | ||
| شناسه دیجیتال (DOI): 10.22099/ijsts.2016.3558 | ||
| نویسنده | ||
| Hirbod Karimi* | ||
| Young Researchers Club, Shahreza Branch, Islamic Azad university, Shahreza , Iran. | ||
| چکیده | ||
| Copper zirconium phosphate (ZPCu) nanoparticles were used as a convenient and efficient catalyst for multi-component reactions (MCRs) in solvent-free conditions. The catalyst is easy to prepare and shows interesting catalytic properties. The catalyst was characterized by some instrumental techniques such as ICP-OES, EDS, XRD, BET, NH3-TPD, Py-FTIR, SEM, and TEM. These analyses revealed that the interlayer distance in the catalyst increased from 7.6 to 8.8 Å when Cu2+ was intercalated between the layers, whereas the crystallinity of the material was reduced. The steric and electronic properties of the different substrates had a significant influence on the reaction conditions. These protocols have the advantages of inexpensive materials, mild reaction conditions, excellent yields, short reaction times, simple and clean work-up. This work introduces a new application of this catalyst, not described in the literature up to now. Also, the catalyst can be recovered and reused for three times without a significant loss in its activity and selectivity. | ||
| کلیدواژهها | ||
| Copper zirconium phosphate؛ Heterogeneous catalysis؛ Solvent-free؛ Nanoparticle؛ Multi-component reactions | ||
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