Palladium-nanoparticles catalyzed hydrodehalogenation of aryl chlorides in ionic liquids

被引：47

作者：

Calo, Vincenzo ^{[1
]}

Nacci, Angelo ^{[1
]}

Monopoli, Antonio ^{[1
]}

Damascelli, Anna ^{[1
]}

Ieva, Eliana ^{[1
]}

Cioffi, Nicola ^{[1
]}

机构：

[1] Univ Bari, Dept Chem, CNR, ICCOM, I-70126 Bari, Italy

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2007年 / 692卷 / 20期

关键词：

aryl chlorides; hydrodechlorination; palladium-nanoparticles; ionic liquids; recycling;

D O I：

10.1016/j.jorganchem.2007.07.007

中图分类号：

O61 [无机化学];

学科分类号：

070301 [无机化学]; 081704 [应用化学];

摘要：

Pd-nanoparticles, in molten tetrabutylammonium bromide as the solvent and tetrabutylammonium acetate as the base, catalyze the hydrodehalogenation of various aryl chlorides under hydrogen at atmospheric pressure. Recycling experiments show a decreasing activity of this catalyst due to a small leaching of palladium from the ionic liquid phase during the extraction of the reaction products with cyclohexane. On the contrary, leaching is avoided when vacuum distillation is used to separate the dehalogenated products form the reaction mixture, thus allowing an extensive recycling of the Pd-catalyst. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：4397 / 4401

页数：5

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