Hexagonal Boron Nitride Supported N-Heterocyclic Carbene-Palladium(II): A New, Efficient and Recyclable Heterogeneous Catalyst for Suzuki–Miyaura Cross-Coupling Reaction
作者:Arnet Maria Antony、Vishal Kandathil、Manjunatha Kempasiddaiah、B. S. Sasidhar、Shivaputra A. Patil、Siddappa A. Patil
DOI:10.1007/s10562-020-03401-x
日期:2021.5
h-BN@NHC-Pd heterogeneous catalyst was studied in the Suzuki–Miyaura cross-coupling reactions between aryl halides and arylboronic acids in aqueous medium at room temperature. The effects of varying solvents, bases, temperature, time and catalytic ratios on the performance of the Suzuki–Miyaura cross-coupling reaction were investigated. Moreover, h-BN@NHC-Pd heterogeneous catalyst could be easily recovered
在这项研究中,设计并合成了一种新型稳定且功能强大的六方氮化硼负载 N-杂环卡宾-钯 (II) 络合物 (h-BN@NHC-Pd) 多相催化剂。h-BN@NHC-Pd多相催化剂的结构通过傅里叶变换红外光谱(FT-IR)、紫外-可见光谱(UV-Visible)、电感耦合等离子体发射光谱(ICP- OES)、能量色散 X 射线光谱 (EDS)、场发射扫描电子显微镜 (FESEM)、透射电子显微镜 (TEM)、X 射线粉末衍射 (XRD)、热重分析 (TGA) 和 Brunauer-Emmett-出纳表面积分析 (BET)。然后在室温下在水性介质中芳基卤化物和芳基硼酸之间的 Suzuki-Miyaura 交叉偶联反应中研究了 h-BN@NHC-Pd 多相催化剂的催化活性。研究了不同溶剂、碱、温度、时间和催化比率对 Suzuki-Miyaura 交叉偶联反应性能的影响。此外,h-BN@NHC-P