作者:Jacqueline E. Milne、Stephen L. Buchwald
DOI:10.1021/ja0474493
日期:2004.10.1
A new catalyst system for the Pd-catalyzed cross-coupling of organozinc reagents with aryl halides (Negishi coupling) has been developed. This system permits efficient preparation of hindered biaryls (tri- and tetra-ortho-substituted), functions effectively at low levels of catalyst, and tolerates a wide range of functional groups and heterocyclic substrates. A systematic study of ligand structure
已经开发了一种新的催化剂体系,用于 Pd 催化的有机锌试剂与芳基卤化物的交叉偶联(Negishi 偶联)。该系统允许有效制备受阻联芳基化合物(三和四邻位取代),在低催化剂水平下有效发挥作用,并能耐受广泛的官能团和杂环底物。对配体结构进行了系统研究,并与催化剂活性相关联。