期刊
RSC ADVANCES
卷 10, 期 29, 页码 17123-17128出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ra01190h
关键词
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资金
- Natural Science Foundation of Hunan Province [2018JJ3409]
- Scientific Research Program of Huaihua University [HHUY2019-05]
- Scientific Research Fund of Hunan Provincial Education Department [17A166]
- Foundation of Huaihua University Double First-rate Applied Characteristic Discipline Construction Projects of Materials Science and Engineering [19CKA003]
- Foundation of Hunan Double First-rate Discipline Construction Projects [YYZW2019-02]
A novel hypercrosslinked polymers-palladium (HCPs-Pd) catalyst was successfully prepared via the external cross-linking reactions of substituted 1,2,3-triazoles with benzene and formaldehyde dimethyl acetal. The preparation of HCPs-Pd has the advantages of low cost, mild conditions, simple procedure, easy separation and high yield. The catalyst structure and composition were characterized by N-2 sorption, TGA, FT-IR, SEM, EDX, TEM, XPS and ICP-AES. The HCPs were found to possess high specific surface area, large micropore volume, chemical and thermal stability, low skeletal bone density and good dispersion for palladium chloride. The catalytic performance of HCPs-Pd was evaluated in Suzuki-Miyaura coupling reactions. The results show that HCPs-Pd is a highly active catalyst for the Suzuki-Miyaura coupling reaction in H2O/EtOH solvent with TON numbers up to 1.66 x 10(4). The yield of biaryls reached 99%. In this reaction, the catalyst was easily recovered and reused six times without a significant decrease in activity.
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