Pd nanoclusters in C-C coupling reactions: Proof of leaching

被引:212
作者
Thathagar, Mehul B. [1 ]
ten Elshof, Johan E.
Rothenberg, Gadi
机构
[1] Univ Amsterdam, Vant Hoff Inst Mol Sci, Nieuwe Achtergracht 166, NL-1018 WV Amsterdam, Netherlands
[2] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands
关键词
cross-coupling; Heck reaction; homogeneous catalysis; nanoparticles; palladium;
D O I
10.1002/anie.200504321
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A simple experiment based on exclusion of Pd nanoclusters was used to identify the true catalytic species in cluster-catalyzed Heck cross-couplings. A special reactor was used in which two compartments are separated by a nanoporous membrane that allows the passage of Pd atoms and ions but not of Pd nanoclusters (see picture). The results show that the real catalysts in the Heck coupling of n-butyl acrylate with iodobenzene are species leached from the Pd nanoclusters. (Figure Presented). © 2006 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:2886 / 2890
页数:5
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