Porous polymer supported palladium catalyst for cross coupling reactions with high activity and recyclability

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	Porous polymer supported palladium catalyst for cross coupling reactions with high activity and recyclability
	Q. Sun; L. F. Zhu; Z. H. Sun; X. J. Meng; F. S. Xiao
	2012
发表期刊	Science China-Chemistry
ISSN	1674-7291
卷号	55 期号:10 页码:2095-2103
摘要	Porous polymer supported palladium catalyst for cross coupling reactions with high activity has been successfully prepared by coordination of Pd2+ species with Schiff bases functionalized porous polymer. The catalyst has been systemically investigated by a series of characterizations such as TEM, N-2 adsorption, NMR, IR, XPS, etc. TEM and N-2 isotherms show that the sample maintains the nanoporous structure after the modification and coordination. XPS results show that chemical state of palladium species in the catalyst is mainly +2. More importantly, the catalyst shows very high activities and excellent recyclability in a series of coupling reactions including Suzuki, Sonogashira, and Heck reactions. Hot filtration and poison of catalysts experiments have also been performed and the results indicate that soluble active species (mainly Pd(0) species) in-situ generated from the catalyst under the reaction conditions are the active intermediates, which would redeposit to the supporter after the reactions.
部门归属	[sun qi; meng xiangju; xiao feng-shou] zhejiang univ, dept chem, key lab appl chem zhejiang prov, hangzhou 310028, peoples r china. [zhu longfeng] jilin univ, state key lab inorgan synth & preparat chem, changchun 130012, peoples r china. [sun zhenhua] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;meng, xj (reprint author), zhejiang univ, dept chem, key lab appl chem zhejiang prov, xixi campus, hangzhou 310028, peoples r china.;mengxj@zju.edu.cn; fsxiao@mail.jlu.edu.cn
关键词	Heterogenous Catalysis Pd Coupling Reactions Nanoporous Polymers Phase-transfer Catalysis Heck Reaction Heterogeneous Palladium Aryl Chlorides Suzuki Reaction Modified Zeolites Activated Carbon Ionic-liquid Copper-free Water
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文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/60245
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Q. Sun,L. F. Zhu,Z. H. Sun,et al. Porous polymer supported palladium catalyst for cross coupling reactions with high activity and recyclability[J]. Science China-Chemistry,2012,55(10):2095-2103.
APA	Q. Sun,L. F. Zhu,Z. H. Sun,X. J. Meng,&F. S. Xiao.(2012).Porous polymer supported palladium catalyst for cross coupling reactions with high activity and recyclability.Science China-Chemistry,55(10),2095-2103.
MLA	Q. Sun,et al."Porous polymer supported palladium catalyst for cross coupling reactions with high activity and recyclability".Science China-Chemistry 55.10(2012):2095-2103.