期刊
RSC ADVANCES
卷 4, 期 78, 页码 41469-41475出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra05550k
关键词
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资金
- Research Council of Guilan University
Magnetite nanoparticles were used as a core for -OSO3H functionalized mesoporous MCM-41 shell to provide a core-shell solid acid catalyst (Fe3O4@MCM-41-OSO3H). The catalyst was characterized by transmission electron microscopy (TEM), infrared spectroscopy (FT-IR), X-ray diffraction (XRD) and a vibrating sample magnetometer (VSM). The obtained nano-magnetic catalyst was used in the three-component reaction of indoles, aldehydes and thiols to furnish the desired 3-[(aryl)(arylthio)methyl]-1H-indoles in good yields under very mild reaction conditions. The unique feature of the reaction was the ease of work-up and catalyst recovery. The recovered catalyst maintained catalytic activity for five successive runs.
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