作者:Lionel Joucla、Nelly Batail、Laurent Djakovitch
DOI:10.1002/adsc.201000512
日期:2010.11.22
communication describes the development of a versatile catalytic system based on palladium(II) acetate/bis(diphenylphosphino)methane [Pd(OAc)2/dppm] that works “on water” giving site-selective CH arylation of (NH)-indoles without protecting or directing groups. Remarkably, the control of regioselectivity was achieved by small changes in the “extra-catalytic” base/halide partners. These innovative methodologies
该交流描述了基于乙酸钯(II)/双(二苯基膦基)甲烷[Pd(OAc)2 / dppm]的通用催化系统的开发,该系统可“在水上”工作,从而提供(NH)-吲哚的选择性CH芳基化没有保护或指导团体。值得注意的是,区域选择性的控制是通过“额外催化”的碱/卤化物伙伴的微小变化来实现的。这些创新的方法学使得可以高产率地获得C2和C3-芳基吲哚以及2,3-二芳基吲哚,并且就吲哚或芳基部分而言显示出高的化学/区域选择性和结构通用性。