Highly Dispersed Pd Species Active in the Suzuki-Miyaura Reaction

被引：22

作者：

Okumura, Kazu ^{[1
]}

Matsui, Hirosuke ^{[1
]}

Tomiyama, Takuya ^{[1
]}

Sanada, Takashi ^{[1
]}

Honma, Tetsuo ^{[2
]}

Hirayama, Sayaka ^{[2
]}

Niwa, Miki ^{[1
]}

机构：

[1] Tottori Univ, Grad Sch Engn, Dept Chem & Biotechnol, Minami Ku, Tottori, Japan

[2] Japan Synchroton Radiat Res Inst SPring 8, Sayo, Hyogo 6795198, Japan

来源：

CHEMPHYSCHEM | 2009年 / 10卷 / 18期

基金：

日本学术振兴会;

关键词：

EXAFS spectroscopy; palladium; Suzuki-Miyaura reaction; X-ray absorption spectroscopy; zeolites; CROSS-COUPLING REACTIONS; N-HETEROCYCLIC CARBENES; PALLADIUM NANOPARTICLES; METAL NANOPARTICLES; ARYL CHLORIDES; HECK REACTION; USY ZEOLITE; CATALYSTS; ADSORPTION; COMPLEXES;

D O I：

10.1002/cphc.200900711

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：

Structures of Pd/zeolites immersed in solvents were measured by in situ X-ray absorption fine structure (XAFS). Systematic studies revealed that the selection of an appropriate support (USY-zeolite), thermal treatment temperature of USY, solvent (o-xylene), H-2 partial pressure (6%), and the use of a Pd amine complex affect the structure of Pd. As a result, we found that monomeric Pd can be obtained in the USY support with H-2 bubbling in o-xylene. The structural properties of Pd correlate well with its catalytic performance in the Suzuki-Miyaura coupling reactions; a very high TON of up to 11000 000 was obtained over the monomeric Pd.

引用

页码：3265 / 3272

页数：8

共 33 条

[1] Non-conventional methodologies for transition-metal catalysed carbon-carbon coupling: a critical overview. Part 2: The Suzuki reaction [J].

Alonso, Francisco ;

Beletskaya, Irina P. ;

Yus, Miguel .

TETRAHEDRON, 2008, 64 (14) :3047-3101

[2]

BECK A, 2004, NANOTECHNOLOGY CATAL, V1, pCH5

[3] Palladium catalysts for the Suzuki cross-coupling reaction: An overview of recent advances [J].

Bellina, F ;

Carpita, A ;

Rossi, R .

SYNTHESIS-STUTTGART, 2004, (15) :2419-2440

[4] Palladium-catalyzed C-C coupling under thermomorphic conditions [J].

Bergbreiter, DE ;

Osburn, PL ;

Wilson, A ;

Sink, EM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (38) :9058-9064

[5] Pd nanoparticles embedded in sponge-like porous silica as a Suzuki-Miyaura catalyst: Similarities and differences with homogeneous catalysts [J].

Budroni, Gerolamo ;

Corma, Avelino ;

Garia, Hermenegildo ;

Primo, Ana .

JOURNAL OF CATALYSIS, 2007, 251 (02) :345-353

[6]

Daems I, 2005, STUD SURF SCI CATAL, V158, P1177

[7] Heck reaction catalyzed by Pd-modified zeolites [J].

Djakovitch, L ;

Koehler, K .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2001, 123 (25) :5990-5999

[8] Pd-loaded NaY zeolite as a highly active catalyst for ligandless Suzuki-Miyaura reactions of aryl halides at low Pd loadings under aerobic conditions [J].

Durgun, Gulay ;

Aksin, Ozge ;

Artok, Levent .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2007, 278 (1-2) :189-199

[9] Ion- and atom-leaching mechanisms from palladium nanoparticles in cross-coupling reactions [J].

Gaikwad, Anil V. ;

Holuigue, Alexandre ;

Thathagar, Mehul B. ;

ten Elshof, Johan E. ;

Rothenberg, Gadi .

CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13 (24) :6908-6913

[10] In situ generation of palladium nanoparticles: A simple and highly active protocol for oxygen-promoted ligand-free suzuki coupling reaction of aryl chlorides [J].

Han, Wei ;

Liu, Chun ;

Jin, Zi-Lin .

ORGANIC LETTERS, 2007, 9 (20) :4005-4007

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