Palladium(0) nanoparticles formed in situ in the Suzuki-Miyaura reaction: The effect of a palladium(II) precursor

被引：46

作者：

Borkowski, T. ^{[1
]}

Trzeciak, A. M. ^{[1
]}

Bukowski, W. ^{[2
]}

Bukowska, A. ^{[2
]}

Tylus, W. ^{[3
]}

Kepinski, L. ^{[4
]}

机构：

[1] Univ Wroclaw, Fac Chem, PL-50383 Wroclaw, Poland

[2] Rzeszow Univ Technol, Fac Chem, PL-35959 Rzeszow, Poland

[3] Wroclaw Univ Technol, Inst Inorgan Technol, PL-50370 Wroclaw, Poland

[4] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

来源：

APPLIED CATALYSIS A-GENERAL | 2010年 / 378卷 / 01期

关键词：

Palladium; Nanoparticles; Suzuki-Miyaura; Immobilized catalyst; XPS; CROSS-COUPLING REACTIONS; HECK REACTION; C-C; ARYL CHLORIDES; CATALYSTS; PD; EFFICIENT; TEMPERATURE; PALLADACYCLES; POLYMER;

D O I：

10.1016/j.apcata.2010.02.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Two palladium catalyst precursors were prepared by immobilizing PdCl(2) and Pd(OAc)(2) on cyclohexyldiamine-modified glycidyl methacrylate polymer (GMA-CHDA) and used in the Suzuki-Miyaura reaction (80 degrees C, 2 h) without any pre-treatment. Using the TEM, SEM, EDS, and XPS methods, we were able to characterize the Pd(0) nanoparticles formed in situ during the catalytic process. The catalyst obtained from Pd(OAc)(2) (P(2)) contained Pd(0) nanoparticles with a diameter of 3-5 nm, whereas much bigger agglomerates were found for P(1), which had been obtained from PdCl(2). The P(2) catalyst exhibited much better catalytic performance than PI. pointing to an important role of the palladium precursor in the preparation of the catalyst. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：83 / 89

页数：7

共 45 条

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