Unsymmetric-1,3-disubstituted imidazolium salt for palladium-catalyzed Suzuki-Miyaura cross-coupling reactions of aryl bromides

被引：23
|
作者：
Yu, HW
Shi, JC [1 ]
Zhang, H
Yang, PY
Wang, XP
Jin, ZL
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
[2] Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Peoples R China
来源：
JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2006年 / 250卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
palladium; imidazol-2-ylidene; Suzuki-Miyaura reaction; aryl bromides; catalysis;
D O I：
10.1016/j.molcata.2006.01.034
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：
A series of 1-(ferrocenylethyl)-3-substituted-imidazolium salts [3-substitute=2,6-di(iso-propyl)phenyl (1a), 2,4,6-trimethylphenyl (1b), tertbutyl (1c), I-Ad (1d), cyclohexyl (1e)] have been synthesized from a racemic ferrocertylethyl acetate and the corresponding N-substituted imidazole in high yields (70-94%). A combination of Pd(OAc)(2) and 1a-d was found to form an excellent catalyst system for the Suzuki-Miyaura cross-coupling reactions of aryl bromides with phenylboronic acid in the presence of Cs2CO3 (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：15 / 19
页数：5
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