The role of magnetic nanoparticles (MNP) as reducing agents in an MNP-supported Pd-catalyst for the reductive homocoupling of aryl halides

被引：8
作者：
Zheng, Jie [2 ,3 ]
Lin, Shengyue [2 ,3 ]
Jiang, Bi-Wang [2 ,3 ]
Marder, Todd B. [1 ]
Yang, Zhen [2 ,3 ]
机构：
[1] Univ Durham, Dept Chem, Durham DH1 3LE, England
[2] Peking Univ, Shenzhen Grad Sch, Sch Chem Biol & Biotechnol, Lab Chem Genom, Shenzhen 518055, Peoples R China
[3] Peking Univ, Shenzhen Grad Sch, Sch Chem Biol & Biotechnol, Nanomicro Mat Res Ctr, Shenzhen 518055, Peoples R China
来源：
CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE | 2012年 / 90卷 / 01期
基金：
英国工程与自然科学研究理事会; 美国国家科学基金会;
关键词：
magnetic nanoparticles; reducing agent; supported Pd catalyst; reductive homocoupling; aryl halides; CORE-SHELL NANOPARTICLES; AMMONIA BORANE; SYMMETRICAL BIARYLS; COUPLING REACTIONS; DEHYDROGENATION; HYDROGENATION;
D O I：
10.1139/V11-133
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A palladium pincer catalyst grafted onto the surface of magnetic nanoparticles (MNPs) has been developed. This material effectively catalyzes the reductive homocoupling of various aryl halide substrates, with the MNP support acting as the reducing agent. The catalyst can be recycled up to five times in the absence of additional reducing agent to give almost quantitative yields of biaryl homocoupling products. After the reducing power of the MNP has been depleted, the supported Pd complex remains an effective catalyst for Suzuki-Miyaura cross-coupling.
引用
收藏
页码：138 / 144
页数：7
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