Palladium complexes with ethylene-bridged bis(N-heterocyclic carbene) for C-C coupling reactions

被引：163
|
作者：
Lee, HM [1 ]
Lu, CY [1 ]
Chen, CY [1 ]
Chen, WL [1 ]
Lin, HC [1 ]
Chiu, PL [1 ]
Cheng, PY [1 ]
机构：
[1] Natl Changhua Univ Educ, Dept Chem, Changhua 50058, Taiwan
来源：
TETRAHEDRON | 2004年 / 60卷 / 27期
关键词：
C-C coupling reactions; chelating N-heterocyclic carbenes; palladium(II) complexes;
D O I：
10.1016/j.tet.2004.04.070
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A series of new ethylene-bridged bis(imidazolium) halides with various N-substitutions were synthesized. Complexation of these imidazolium halides with Pd(OAc)(2) produced new Pd(II) ethylene-bridged bis(carbene) complexes. Crystallographic analyses of some of the new imidazolium salts and Pd(II) complexes were determined. Applications of these seven-member palladacycles in Suzuki and Heck coupling reactions produced comparable catalytic activities to those of six-member analogs. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5807 / 5825
页数：19
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