Combinatorial design of copper-based mixed nanoclusters: New catalysts for Suzuki cross-coupling

被引:93
作者
Thathagar, MB [1 ]
Beckers, J [1 ]
Rothenberg, G [1 ]
机构
[1] Univ Amsterdam, Dept Chem Engn, NL-1018 WV Amsterdam, Netherlands
关键词
aryl halides; biaryls; bimetallic catalysts; combinatorial catalysis; copper; cross-coupling; nanoclusters;
D O I
10.1002/adsc.200303045
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Quantum dots (2 - 5 nm) of copper and copper/palladium mixtures are found to be good catalysts for Suzuki cross-coupling. The catalysts are applicable to a wide range of iodo- and bromoaryl substrates, and give moderate yields using chloroaryl substrates. Cluster activity and stability is found to depend strongly on the preparation method and the reaction conditions. The mechanism of cluster deactivation and the sensitivity of the cluster-catalysed reaction to substituent effects are studied and discussed.
引用
收藏
页码:979 / 985
页数:7
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