A novel fumed silica-supported nitrogenous platinum complex as a highly efficient catalyst for the hydrosilylation of olefins with triethoxysilane
作者:Ji Li、Chunhui Yang、Lei Zhang、Tianlong Ma
DOI:10.1016/j.jorganchem.2011.02.021
日期:2011.5
A novel fumed silica-supported nitrogenous platinum complex was conveniently prepared from cheap γ-aminopropyltriethoxysilane via immobilization on fumed silica in toluene, followed by a reaction with hexachloroplatinic acid. The title complex was characterized by fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). It was found
<i>N</i>-heterocyclic carbene platinum complexes functionalized with a polyether chain and silyl group: Synthesis and application as a catalyst for hydrosilylation
GRAPHICAL ABSTRACT ABSTRACT The synthesis and characterization of new N-heterocycliccarbeneplatinum(II) complexes functionalized with a polyether chain and silyl group are described. In addition, their application towards the catalytic hydrosilylation of unsaturated carbon–carbon bonds, including alkenes, alkynes, vinyl ether, and unsaturated esters, is reported. These new complexes exhibit both
图形摘要 摘要描述了用聚醚链和甲硅烷基官能化的新型 N-杂环卡宾铂 (II) 配合物的合成和表征。此外,还报道了它们在不饱和碳-碳键(包括烯烃、炔烃、乙烯基醚和不饱和酯)的催化氢化硅烷化中的应用。这些新的配合物表现出优异的催化活性和氢化硅烷化选择性。催化系统可循环使用 >27 次。
Synthesis of a fumed silica-supported poly-3-(2-aminoethylamino)propylsiloxane platinum complex and its catalytic behavior in the hydrosilylation of olefins with triethoxysilane
作者:Ji Li、Lei Zhang、Tingting Li、Chunhui Yang
DOI:10.1080/10426507.2015.1073279
日期:2016.5.3
GRAPHICAL ABSTRACT ABSTRACT A novel fumed silica-supported bidentate nitrogen platinum complex was conveniently prepared from N-(2-aminoethyl)-3-aminopropyltriethoxysilane via immobilization on fumed silica followed by a reaction with hexachloroplatinic acid. The title complex was systematically characterized and analyzed by Fourier Transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy
Hydrosilylation of alkenes catalyzed by rhodium with polyethylene glycol-based ionic liquids as ligands
作者:Yisong Xu、Ying Bai、Jiajian Peng、Jiayun Li、Wenjun Xiao、Guoqiao Lai
DOI:10.1016/j.jorganchem.2014.05.002
日期:2014.8
A series of polyethylene glycol-functionalized imidazolium ionic liquids has been prepared and characterized. These ionic liquids have been successfully applied in the hydrosilylation of alkenes catalyzed by rhodium complexes. The effects of the length of the polyether chain, the amount of ionic liquid, and the reaction temperature on the catalytic performance of hydrosilylation have been investigated. Furthermore, the catalytic system has been tested for the hydrosilylation of different alkenes with triethoxysilane. The new catalytic system exhibits both excellent catalytic activity and selectivity under low-temperature conditions. The catalyst system could be recycled five times with slightly deactivation. (C) 2014 Elsevier B.V. All rights reserved.
Rh(PPh<sub>3</sub>)<sub>3</sub>Cl/Tetrakis(Dialkylamino)Phosphonium Salts as Thermoregulated and Recyclable Catalytic System for Hydrosilylation Reaction
作者:Diliang Wang、Jiayun Li、Jiajian Peng、Ying Bai、Guoqiao Lai