Resin-trapped gold nanoparticles: An efficient catalyst for reduction of nitro compounds and Suzuki-Miyaura coupling

被引：110

作者：

Shah, Dipen ^{[1
]}

Kaur, Harjinder ^{[1
]}

机构：

[1] Gujarat Univ, Sch Sci, Dept Chem, Ahmadabad 380009, Gujarat, India

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2014年 / 381卷

关键词：

Resin impregnated AuNPs; Nitroarenes reduction; Suzuki-Miyaura reaction; Microwave heating; AU NANOPARTICLES; PALLADIUM NANOPARTICLES; TEMPERATURE; OXIDATION; GAMMA-AL2O3; DENDRIMER; CHEMISTRY; WATER;

D O I：

10.1016/j.molcata.2013.10.004

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：

Gold in nanoparticle form shows good catalytic activity in contrast to bulk form and is finding applications in a variety of organic reactions. The present investigation describes direct deposition of gold nanopartides onto commercially available resin by sorption reduction method. Uniformly dispersed nanoparticles of 3-8 nm dimensions were characterized by UV-visible spectroscopy, XRD, SEM and TEM, etc. The AuNPs were found to be remarkably stable and active catalysts for the selective reduction of nitro group under mild reaction conditions and microwave-assisted ligand-free Suzuki-Miyaura cross-coupling reaction between aryl halides and phenylboronic acid. Calculated rate constant (2.5 x 10(-2) s(-1)) for the reduction of 4-nitrophenol is among the best reported in the literature. The versatility of both the protocols is demonstrated by taking a number of substrates. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：70 / 76

页数：7

共 31 条

[1] Low-temperature water-gas shift reaction over Au/CeO2 catalysts [J].

Andreeva, D ;

Idakiev, V ;

Tabakova, T ;

Ilieva, L ;

Falaras, P ;

Bourlinos, A ;

Travlos, A .

CATALYSIS TODAY, 2002, 72 (1-2) :51-57

[2] Nanoparticles as recyclable catalysts: The frontier between homogeneous and heterogeneous catalysis [J].

Astruc, D ;

Lu, F ;

Aranzaes, JR .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (48) :7852-7872

[3] Mechanism of selective alcohol oxidation to aldehydes on gold catalysts: Influence of surface roughness on reactivity [J].

Boronat, Mercedes ;

Corma, Avelino ;

Illas, Francesc ;

Radilla, Juan ;

Rodenas, Tania ;

Sabater, Maria J. .

JOURNAL OF CATALYSIS, 2011, 278 (01) :50-58

[4] Supported gold nanoparticles as catalysts for organic reactions [J].

Corma, Avelino ;

Garcia, Hermenegildo .

CHEMICAL SOCIETY REVIEWS, 2008, 37 (09) :2096-2126

[5] The chemistry of intermediates [J].

Crossley, ML .

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY-US, 1922, 14 :802-805

[6] Gold nanoparticles: Assembly, supramolecular chemistry, quantum-size-related properties, and applications toward biology, catalysis, and nanotechnology [J].

Daniel, MC ;

Astruc, D .

CHEMICAL REVIEWS, 2004, 104 (01) :293-346

[7] Nanoparticle-Containing Membranes for the Catalytic Reduction of Nitroaromatic Compounds [J].

Dotzauer, David A. ;

Bhattacharjee, Somnath ;

Wen, Ya ;

Bruening, Merlin L. .

LANGMUIR, 2009, 25 (03) :1865-1871

[8] Facile Synthesis of Highly Stable Gold Nanoparticles and Their Unexpected Excellent Catalytic Activity for Suzuki-Miyaura Cross-Coupling Reaction in Water [J].

Han, Jie ;

Liu, Yan ;

Guo, Rong .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (06) :2060-+

[9] Preparation of gold-dendrimer nanocomposites by laser irradiation and their catalytic reduction of 4-nitrophenol [J].

Hayakawa, K ;

Yoshimura, T ;

Esumi, K .

LANGMUIR, 2003, 19 (13) :5517-5521

[10] Resin encapsulated palladium nanoparticles: An efficient and robust catalyst for microwave enhanced Suzuki-Miyaura coupling [J].

Kaur, Harjinder ;

Shah, Dipen ;

Pal, Usha .

CATALYSIS COMMUNICATIONS, 2011, 12 (14) :1384-1388

← 1 2 3 4 →