Suzuki and Heck coupling reactions mediated by palladium complexes bearing trans-spanning diphosphines
作者:Rhett C. Smith、Christina R. Bodner、Meredith J. Earl、Nathaniel C. Sears、Nicholas E. Hill、Lee M. Bishop、Nicholas Sizemore、Dave T. Hehemann、Justin J. Bohn、John D. Protasiewicz
DOI:10.1016/j.jorganchem.2004.09.077
日期:2005.1
Palladium complexes of three trans-spanning diphosphines are examined for effecting C–C coupling reactions. Ten aryl halides of varying electron density were screened in Suzuki coupling reactions with phenylboronic acid and in Heck reactions with styrene. The results are discussed in terms of the unique flexibility and shape of the meta-terphenyl backbone upon which the diphosphine ligand is built.
考察了三种跨跨二膦的钯配合物对CC偶联反应的影响。在与苯硼酸的Suzuki偶联反应和与苯乙烯的Heck反应中,筛选了十个电子密度不同的芳基卤化物。根据在其上建立二膦配体的间-三联苯骨架的独特柔韧性和形状来讨论结果。