C-C coupling reactions of aryl bromides and arylsiloxanes in water catalyzed by palladium complexes of phosphanes modified with crown ethers

被引:59
作者
Gordillo, Alvaro [1 ]
de Jesus, Ernesto
Lopez-Mardomingo, Carmen
机构
[1] Univ Alcala de Henares, Dept Quim Organ, E-28871 Alcala De Henares, Madrid, Spain
[2] Univ Alcala de Henares, Dept Quim Inorgan, E-28871 Alcala De Henares, Madrid, Spain
关键词
D O I
10.1021/ol061221y
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
The complexes [PdCl2L2], where L is a crown-ether-containing triarylphosphane, catalyze the formation of biaryls from arylsiloxanes and aryl bromides with high yields in water as solvent and under air. The water-insoluble catalysts [PdCl2(PhCN)(2)] and [PdCl2(PPh3)(2)] are also efficient, although they decompose more quickly to form black Pd-0.
引用
收藏
页码:3517 / 3520
页数:4
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