Self-Buffering Hybrid Gold-Polyoxometalate Catalysts for the Catalytic Cyclization of Acid-Sensitive Substrates

被引:34
作者
Dupre, Nathalie [1 ]
Brazel, Christian [1 ]
Fensterbank, Louis [1 ]
Malacria, Max [1 ]
Thorimbert, Serge [1 ]
Hasenknopf, Bernold [1 ]
Lacote, Emmanuel [1 ,2 ]
机构
[1] UPMC Sorbonne Univ, Inst Parisien Chim Mol UMR CNRS 7201, F-75005 Paris, France
[2] ICSN CNRS, F-91198 Gif Sur Yvette, France
关键词
allenes; gold; organic-inorganic hybrid composites; polyoxometalates; protonation; HIGHLY EFFICIENT; INTERCLUSTER COMPOUND; COMPLEXES; OXIDATION; CYCLOISOMERIZATION; EPOXIDATION; ACTIVATION; STABILITY; LIGANDS; ALLENES;
D O I
10.1002/chem.201201007
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Grafting of a gold complex to an organo-polyoxometalate delivers catalytically active bitopic hybrids. The gold end activates allenes, while the metal-oxide surface can capture protons (see scheme). The scope of the gold-catalyzed oxacyclization of allenols is expanded to highly sensitive tertiary benzylic alcohols. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:12962 / 12965
页数:4
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