催化作用
共聚物
苯乙烯
磺酸
聚合物
化学
钯
反应性(心理学)
高分子化学
同种类的
均相催化
多相催化
有机化学
材料科学
替代医学
病理
物理
热力学
医学
作者
Xingkun Chen,Hejun Zhu,Wenlong Wang,Hong Du,Tao Wang,Yan Li,Xiang‐Ping Hu,Yunjie Ding
出处
期刊:Chemsuschem
[Wiley]
日期:2016-08-17
卷期号:9 (17): 2451-2459
被引量:37
标识
DOI:10.1002/cssc.201600660
摘要
Abstract A multifunctional copolymer (PyPPh 2 –SO 3 H@porous organic polymers, POPs) was prepared by combining acidic groups and heterogeneous P,N ligands through the copolymerization of vinyl‐functionalized 2‐pyridyldiphenylphosphine (2‐PyPPh 2 ) and p ‐styrene sulfonic acid under solvothermal conditions. The morphology and chemical structure of the copolymer were evaluated using a series of characterization techniques. Compared with traditional homogeneous Pd(OAc) 2 /2‐PyPPh 2 / p ‐toluenesulfonic acid catalyst, the copolymer supported palladium catalyst (Pd–PyPPh 2 –SO 3 H@POPs) exhibited higher activity for alkoxycarbonylation of terminal alkynes under the same conditions. This phenomenon could be attributed to the synergistic effect between the single‐site Pd centers, 2‐PyPPh 2 ligands, and SO 3 H groups, the outstanding swelling properties as well as the high enrichment of the reactant concentration by the porous catalyst. In addition, the catalyst could be reused at least 4 times without any apparent loss of activity. The excellent catalytic reactivity and good recycling properties make it an attractive catalyst for industrial applications. This work paves the way for advanced multifunctional porous organic polymers as a new type of platform for heterogeneous catalysis in the future.
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