High Catalytic Activity of Palladium(II)-Exchanged Mesoporous Sodalite and NaA Zeolite for Bulky Aryl Coupling Reactions: Reusability under Aerobic Conditions

被引：143

作者：

Choi, Minkee ^{[1
,2
]}

Lee, Dong-Hwan ^{[1
,2
]}

Na, Kyungsu ^{[1
,2
]}

Yu, Byung-Woo ^{[1
,2
]}

Ryoo, Ryong ^{[1
,2
]}

机构：

[1] Korea Adv Inst Sci & Technol, Ctr Funct Nanomat, Dept Chem, Taejon 305701, South Korea

[2] Korea Adv Inst Sci & Technol, Grad Sch Nanosci & Nanotechnol WCU, Taejon 305701, South Korea

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2009年 / 48卷 / 20期

关键词：

cross-coupling; heterogeneous catalysis; mesoporous materials; palladium; zeolites; HECK REACTION; SUPPORTED PALLADIUM; DIRECTED SYNTHESIS; BASIC ZEOLITES;

D O I：

10.1002/anie.200806334

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Exchange for the better: Mesoporous sodalite and NaA zeolite exchanged with Pd2+ exhibit remarkably high activity and reusability in C C coupling reactions under aerobic atmosphere. It is proposed that the catalytic reactions are mediated by a molecular Pd0 species generated in situ within the pores (see picture), which is oxidized back to Pd2+ by O2, preventing the formation of catalytically inactive Pd0 agglomerates. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：3673 / 3676

页数：4

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