[1,2]-Aryl migration in the synthesis of substituted indoles: scope, mechanism, and high throughput experimentation
作者:Tao Pei、David M. Tellers、Eric C. Streckfuss、Cheng-yi Chen、Ian W. Davies
DOI:10.1016/j.tet.2008.11.026
日期:2009.4
A mild regioselective synthesis of substituted indoles from readily accessible 1-(2-aminophenyl)-2-chloroethanones is described. Addition of a range of carbon nucleophiles to α-chloro acetophenones 1 generates 2-substituted indoles 2 in moderate to excellent yields. A reaction mechanism involving a [1,2]-aryl migration is proposed. This useful transformation is further examined using high throughput
描述了从容易获得的1-(2-氨基苯基)-2-氯乙炔轻度区域选择性合成取代的吲哚的方法。在α-氯苯乙酮1中加入一定范围的碳亲核试剂,可以中等至极好的收率生成2-取代的吲哚2。提出了一种涉及[1,2]-芳基迁移的反应机理。使用高通量实验将进一步检查这种有用的转换。