Mesoporous Silica with Site-Isolated Amine and Phosphotungstic Acid Groups: A Solid Catalyst with Tunable Antagonistic Functions for One-Pot Tandem Reactions

被引:180
作者
Shiju, N. Raveendran [1 ]
Alberts, Albert H. [1 ]
Khalid, Syed [3 ]
Brown, David R. [2 ]
Rothenberg, Gadi [1 ]
机构
[1] Univ Amsterdam, Vant Hoff Inst Mol Sci, NL-1098 XH Amsterdam, Netherlands
[2] Univ Huddersfield, Dept Chem & Biol Sci, Mat & Catalysis Res Ctr, Queensgate HD1 3DH, W Yorkshire, England
[3] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA
基金
英国工程与自然科学研究理事会;
关键词
heterogeneous catalysis; mesoporous materials; NMR spectroscopy; HETEROGENEOUS CATALYSIS; COOPERATIVE CATALYSIS; BASE; NANOCATALYSTS; NANOPARTICLES; COPOLYMER; TRIBLOCK; DESIGN; PORES; THIOL;
D O I
10.1002/anie.201101449
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Coniuga et impera: A bifunctional solid catalyst is prepared by combining acid and base functions on mesoporous silica supports (see picture). The co-existence of these functions is shown by a two-step reaction sequence in one pot. Excellent product yields, which cannot be obtained by separated acid and base functions in one pot, show the validity of our concept. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:9615 / 9619
页数:5
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