First Application of an Efficient and Versatile Ligand for Copper-Catalyzed Cross-Coupling Reactions of Vinyl Halides with <i>N</i>-Heterocycles and Phenols
作者:M. Shahjahan Kabir、Michael Lorenz、Ojas A. Namjoshi、James M. Cook
DOI:10.1021/ol9026446
日期:2010.2.5
2-Pyridin-2-yl-1H-benzoimidazole L3 is presented as a new, efficient, and versatile bidentate N-donor ligand suitable for the copper-catalyzed formation of vinyl C−N and C−O bonds. This inexpensive and easily prepared ligand facilitates copper-catalyzed cross-coupling reactions of alkenyl bromides and iodides with N-heterocycles and phenols to afford the desired cross-coupled products in good to excellent
2-Pyridin-2-yl-1H-benzoimidazole L3 是一种新型、高效、多功能的双齿 N 供体配体,适用于铜催化形成乙烯基 CN 和 CO 键。这种廉价且易于制备的配体促进了铜催化的烯基溴化物和碘化物与N-杂环和酚的交叉偶联反应,以良好至极好的收率提供所需的交叉偶联产物,并完全保留立体化学。这种方法特别值得注意,因为它的效率,即温和的反应条件、低催化剂负载、简单、多功能和优异的官能团耐受性。