Highly Chemo- and Enantioselective Synthesis of 3-Allyl-3-aryl Oxindoles via the Direct Palladium-Catalyzed α-Arylation of Amides
作者:Xinjun Luan、Linglin Wu、Emma Drinkel、Ronaldo Mariz、Michele Gatti、Reto Dorta
DOI:10.1021/ol1003093
日期:2010.5.7
A new NHC·Pd-catalyzed asymmetric α-arylation of amides is reported that gives direct access to synthetically valuable, allylated oxindoles with quaternary carbon centers. The reaction is made possible by the introduction of a new chiral NHC ligand. The palladium complexes derived therefrom combine excellent reactivity with high chemo- and enantioselectivity for the title transformation.
据报道,一种新的NHC·Pd催化的酰胺的不对称α-芳基化反应可直接获得具有季碳中心的合成有价值的烯丙基化吲哚。通过引入新的手性NHC配体使反应成为可能。由其衍生的钯配合物将优异的反应性与对标题转化的高化学和对映选择性结合在一起。