Carbene adduct of cyclopalladated ferrocenylimine: Efficient catalyst for the Suzuki coupling of sterically hindered aryl chlorides with a weaker base and low catalyst loading

被引:17
作者
Cui, Mengjun [1 ]
Li, Jingya [1 ]
Yu, Ajuan [1 ]
Zhang, Jinli [1 ]
Wu, Yangjie [1 ]
机构
[1] Zhengzhou Univ, Key Lab Appl Chem Henan Univ, Henan Key Lab Chem Biol & Organ Chem, Dept Chem, Zhengzhou 450052, Peoples R China
基金
中国国家自然科学基金;
关键词
cyclopalladated ferrocenylimine; N-heterocyclic carbene; Suzuki reaction; sterically hindered aryl chloride;
D O I
10.1016/j.molcata.2008.05.001
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
One-pot synthesis of the N,N'-bis(2,6-diisopropylphenyl)imidazol-2-ylidene (IPr) adduct of cyclopalladated ferrocenylimine complex 1 has been described. This complex has been successfully applied to Suzuki coupling reaction. Various aryl chloride and boronic acids can be coupled efficiently with a mild base K3PO4 center dot 7H(2)O and low catalyst loadings. This system has been proven to be compatible with the sterically hindered aryl chlorides and some boronic acids leading to form di- and tri-ortho-substituted biaryls in high yields. (C) 2008 Elsevier B.V. All rights reserved.
引用
收藏
页码:67 / 71
页数:5
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