Catalytic C−H Arylation of SEM-Protected Azoles with Palladium Complexes of NHCs and Phosphines
作者:B. Barry Touré,、Benjamin S. Lane、Dalibor Sames
DOI:10.1021/ol053021c
日期:2006.5.1
[reaction: see text] The synthesis and catalytic evaluation of palladium complexes containing imidazolyl carbene ligand of varying steric and electronic properties is reported. These complexes catalyze the efficient C-H arylation of SEM-protected azole heteroarenes and thus provide a good method for preparation of a wide range of arylated free (NH)-azoles including pyrroles, indoles, imidazoles, and
[反应:见正文]报道了具有不同空间和电子性质的含咪唑基卡宾配体的钯配合物的合成和催化评估。这些配合物可催化由SEM保护的唑杂芳烃进行有效的CH芳基化反应,从而为制备各种芳基化的游离(NH)-唑包括吡咯,吲哚,咪唑和咪唑并[1,2-a]吡啶提供了一种好的方法。该反应操作简单。复合物对水分不敏感。