hindered biaryls efficiently, a series of NHC-Pd(II)-azole complexes bearing sterically hindered ligands were synthesized and characterized. The steric environment effect as well as the electronic effect of the azole ligands has been assessed. All these complexes were applied in the Suzuki−Miyaura cross-coupling reaction of sterically hindered arylchlorides with low catalysts loadings (0.1 mol %) under
[EN] SYNTHESIS OF PHOSPHINE LIGANDS BEARING TUNABLE LINKAGE: METHODS OF THEIR USE IN CATALYSIS<br/>[FR] SYNTHÈSE DE LIGANDS DE PHOSPHINE PORTANT UNE LIAISON RÉGLABLE : PROCÉDÉS POUR LEUR UTILISATION DANS UNE CATALYSE
申请人:THE HONG KONG POLYTECHNIC UNIV SHENZHEN RESEARCH INSTITUTE
公开号:WO2017193288A1
公开(公告)日:2017-11-16
A series of novel linked indolyl phosphine ligands for transition metals, the synthesis thereof and their use in catalytic coupling reactions are provided. The ligands provide improvements of trasition-metal-catalyzed reactions, including the range of substrates scope, reaction conditions and efficieny.
Highly active NHC–Pd(<scp>ii</scp>) complexes for cross coupling of aryl chlorides and arylboronic acids: an investigation of the effect of remote bulky groups
作者:Fangwai Han、Ying Xu、Rongjiao Zhu、Guiyan Liu、Chen Chen、Jianhui Wang
DOI:10.1039/c8nj01047a
日期:——
series of palladium(II) complexes bearing remote bulky ligands were synthesized and characterized. Their catalytic activity for Suzuki–Miyaura cross-coupling reactions and the effect of remote bulky groups were investigated. These new palladium complexes are highly efficient for the Suzuki–Miyaura cross-coupling reactions of aryl chlorides and arylboronicacids with low catalyst loadings (0.05 mol%) at room
Highly active palladium catalysts containing a 1,10-phenanthroline analogue N-heterocyclic carbene for room temperature Suzuki-Miyaura coupling reactions of aryl chlorides with arylboronic acids in aqueous media
作者:Guiyan Liu、Chengxin Liu、Fangwai Han、Zhongliang Wang、Jianhui Wang
DOI:10.1016/j.tetlet.2016.12.071
日期:2017.2
structures were determined by single-crystal X-ray diffraction. The NHC-palladium complexes were employed as catalysts for Suzuki-Miyaura coupling reactions of arylchlorides with arylboronic acids in aqueous media at room temperature. The cross-coupling reactions were highlyefficient with low catalysts loadings.
合成了两种新的含有1,10-菲咯啉类似物N-杂环卡宾(NHC)的钯(II)配合物。通过1 H和13 C NMR光谱和元素分析对复合物进行表征,并通过单晶X射线衍射确定其结构。NHC-钯络合物用作在室温下在水性介质中芳基氯与芳基硼酸的Suzuki-Miyaura偶联反应的催化剂。交叉偶联反应在低催化剂负载下是高效的。