Palladium complexes with ethylene-bridged bis( N-heterocyclic carbene) for C–C coupling reactions
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) com...
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Published in | Tetrahedron Vol. 60; no. 27; pp. 5807 - 5825 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
OXFORD
Elsevier Ltd
28.06.2004
Elsevier |
Subjects | |
Online Access | Get full text |
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Summary: | 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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ISSN: | 0040-4020 1464-5416 |
DOI: | 10.1016/j.tet.2004.04.070 |