Homeopathic catalytic activity and atom-leaching mechanism in Miyaura-Suzuki reactions under ambient conditions with precise dendrimer-stabilized Pd nanoparticles

被引：305

作者：

Diallo, Abdou Khadri

Ornelas, Catia

Salmon, Lionel

Aranzaes, Jaime Ruiz

Astruc, Didier ^{[1
]}

机构：

[1] Univ Bordeaux 1, CNRS, UMR 5255, ISM, F-33405 Talence, France

[2] CNRS, LCC, UPR 8241, F-31077 Toulouse 04, France

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2007年 / 46卷 / 45期

关键词：

C-C coupling; catalysis; dendrimers; nanoparticles; palladium;

D O I：

10.1002/anie.200703067

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) What generation gap? Three generations (C0, G1, G2) of dendrimer-stabilized Pd nanoparticles (PdNPs) synthesized by click chemistry catalyze Suzuki reactions of PhX (X = I or Br) at 25°C with increasing catalytic activity as their concentration is decreased: A turnover number of 540 000 was observed for the G0 catalyst 1 ppm in Pd atoms. Extraction of the PdNPs with alkanethiols yields robust Suzuki catalysts for PhI only (see scheme). © 2007 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：8644 / 8648

页数：5

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