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首页> 外文期刊>Catalysis science & technology >The mechanism of a self-assembled Pd-(ferrocenylimine)-Si compound-catalysed Suzuki coupling reaction
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The mechanism of a self-assembled Pd-(ferrocenylimine)-Si compound-catalysed Suzuki coupling reaction

机译：自组装的机理(Pd) - ferrocenylimine si compound-catalysed铃木偶联反应

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The Suzuki coupling reaction catalysed by a self-assembled monolayer of palladium(II)-ferrocenylimine complex supported on a silica surface (Pd(FcL)-Si) was studied in detail. The precatalyst hybrid was used for the in situ reduction of the catalytically active Pd-0 to investigate the catalysis reaction using the water-drop contact angle method, atomic force microscopy, Raman spectroscopy, cyclic voltammetry and X-ray photoelectron spectroscopy. The first reaction step on the substrate, i.e., the oxidative addition of aryl halide to Pd(0()FcL)-Si, was established. In addition, evidence of catalyst restoration to its initial state after catalytic reaction was obtained. These results suggested that surface sites on Pd(FcL)-Si were crucial to the catalysis of the coupling reaction. A Pd-0/Pd-II redox interplay on the surface was also clearly detected. We believe that this catalytic reaction process can overcome the issues of low catalytic activity and reusability to provide a highly active and reusable heterogeneous catalytic system.
机译：铃木耦合反应催化了自组装单层的钯(II) -ferrocenylimine复杂的支持在硅的表面(Pd (FcL) si)进行了研究细节。原位还原的催化地活跃使用Pd-0探讨催化反应水滴接触角法、原子力显微镜、拉曼光谱、循环伏安法和x射线光电子能谱。在底物反应的第一步,也就是说,芳基卤化物的氧化加成Pd (0 (FcL) si,成立。催化剂恢复到最初的证据催化反应后获得。这些结果表明,表面网站Pd (FcL) si的催化作用的关键耦合反应。从表面上看显然也被检测到。相信这催化反应过程克服催化活性低的问题提供一个高度活跃的和可重用性可重用的多相催化体系。

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  • 1. SILAN-COUPLING. [P] . 外国专利： SE7413418L . 1976-01-16

    机译：SI LAN-coupling.

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