Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/34548
標題: Biphasic Suzuki coupling reactions of aryl or benzyl bromides employing cobalt-containing phosphine ligand coordinated palladium complex
作者: Chang, C.P.
洪豐裕
Huang, Y.L.
Hong, F.E.
關鍵字: biphasic Suzuki reaction
palladium complex
cobalt-containing
phosphine
phase-transfer agent
highly-active catalyst
room-temperature
cross-couplings
arylboronic
acids
c-c
bidentate ligands
biaryl synthesis
general-method
pd
complexes
chlorides
期刊/報告no:: Tetrahedron, Volume 61, Issue 15, Page(s) 3835-3839.
摘要: Biphasic Suzuki-coupling reactions of aryl and benzyl bromides employing a cobalt-containing phosphine ligand chelated palladium complex 2 were carried out in various reaction conditions. Comparisons of the catalytic efficiencies in the presence/absence of a phase-transfer agent, TBAB, were presented. In addition, the effects of altering solvents, temperatures, catalysts, and substrates on the reactions were monitored and reported. Better yields were commonly observed while a phase-transfer agent TBAB was participated in the reactions. The factor of reaction time is more crucial than that of temperature in short reaction hour experiments. Obviously, an induction period for the reduction of Pd(II) to Pd(0) active species is needed for this type of reaction. (c) 2005 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/11455/34548
ISSN: 0040-4020
文章連結: http://dx.doi.org/10.1016/j.tet.2005.01.134
Appears in Collections:化學系所

文件中的檔案:

取得全文請前往華藝線上圖書館



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.