Palladium complexes with ethylene-bridged bis(N-heterocyclic carbene) for C-C coupling reactions |
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| Authors: | Hon Man Lee Chi Ying Lu Chih Yuan Chen Wen Ling Chen Hung Ching Lin Pei Ling Chiu Pi Yun Cheng |
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| Affiliation: | Department of Chemistry, National Changhua University of Education, Changhua 50058, Taiwan, ROC |
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| Abstract: | 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. |
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| Keywords: | C-C Coupling reactions Chelating N-heterocyclic carbenes Palladium(II) complexes |
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