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|標題:||Palladium catalyzed Suzuki coupling reactions using cobalt-containing bulky phosphine ligands|
|期刊/報告no：:||Tetrahedron, Volume 60, Issue 11, Page(s) 2639-2645.|
|摘要:||Three bulky mono-dentate alkyne-bridged dicobalt-phosphine complexes [(mu-PPh2CH2PPh2)Co-2(CO)(4)](mu,eta-PhCdropCPPh(2)) 4a, [(mu-PPh2CH2PPh2)Co-2(CO)(4)](mu,eta-Me(3)CCdropCPPh(2)) 5a and [(mu-PPh2CH2PPh2)Co-2(CO)(4)](mu,eta-Me3SiC-CPPh2) 6a were prepared from the reactions of the bis(diphenylphosphino)methyleDe (dppm) bridged dicobalt complex Co-2(CO)(6)(mu-Ph2PCH2PPh2) with PhCdropCPPh(2) 1, Me(3)CCdropCPPh(2) 2, and Me(3)SiCdropCPPh(2) 3, respectively. These three metal-containing compounds 4a, 5a and 6a were employed as ligands, replacing conventional organic phosphines, in the Suzuki cross-coupling reactions and have been proved to be effective, authentic monodentate phosphine ligands. (C) 2004 Elsevier Ltd. All rights reserved.|
|Appears in Collections:||化學系所|
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