Palladium chloride anchored on organic functionalized MCM-41 as a catalyst for the Heck reaction

被引：19

作者：

Fan, Guo-zhi ^{[1
]}

Cheng, Si-qing

Zhu, Ming-fang

Gao, Xin-lei

机构：

[1] Wuhan Polytech Univ, Dept Chem & Environm Engn, Wuhan 430023, Peoples R China

[2] Guangdong Pharmaceut Univ, Coll Pharm, Guangzhou 510006, Peoples R China

来源：

APPLIED ORGANOMETALLIC CHEMISTRY | 2007年 / 21卷 / 08期

关键词：

MCM-41; Heck reaction; palladium complex; functionalized; heterogeneous catalyst;

D O I：

10.1002/aoc.1244

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Palladium chloride was grafted to amino-functionalized MCM-41 to prepare heterogeneous catalysts. XRD, N-2 adsorption-desorption isotherms, IR, C-13 and Si-29 cross-polarization magic-angle spinning NMR spectroscopy and XPS techniques were employed to characterize the catalytic materials. The heterogeneous palladium catalyst exhibited excellent catalytic activity for the Heck vinylation of iodobenzene with methyl acrylate, giving 92% yield of methyl cinnamate in the presence of N-methylpyrrolidone (NMP) and triethylamine (Et3N). The stability of the heterogeneous catalyst was also studied in detail. The catalytic tests showed that the palladium leaching correlated to solvent, base and palladium loading. The heterogeneous catalyst exhibited excellent stability towards loss of activity and palladium leaching was not observed during six recycles in the presence of toluene and Na2CO3. Copyright (c) 2007 John Wiley & Sons, Ltd.

引用

页码：670 / 675

页数：6

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