A Highly Selective Tandem Cross-Coupling of <i>gem</i>-Dihaloolefins for a Modular, Efficient Synthesis of Highly Functionalized Indoles
作者:Yuan-Qing Fang、Mark Lautens
DOI:10.1021/jo701987r
日期:2008.1.1
A highly efficient method of indole synthesis using gem-dihalovinylaniline substrates and an organoboron reagent was developed via a Pd-catalyzed tandem intramolecular amination and an intermolecular Suzuki coupling. Aryl, alkenyl, and alkyl boron reagents are all successfully employed, making for a versatile modular approach. The reaction tolerates a variety of substitution patterns on the aniline
使用吲哚合成法的高效率的方法偕- dihalovinylaniline底物和有机硼试剂经由Pd催化的分子内串联胺化和分子间Suzuki偶联显影。芳基,烯基和烷基硼试剂均已成功使用,从而形成了一种通用的模块化方法。该反应耐受苯胺上的多种取代方式,从而导致吲哚类化合物的基团在C 2 -C 7处。铜和钯介导的1,2-二芳基吲哚顺序合成的正交方法开发了多种有机硼试剂的广泛应用。