作者:Florian Huber、Joel Roesslein、Karl Gademann
DOI:10.1021/acs.orglett.9b00489
日期:2019.4.19
An unusual aromatic substitution to access indolenines is described. 2-(2-Methoxyphenyl)acetonitrile derivatives are reacted with various alkyl and aryl Li reagents to furnish the corresponding indolenine products, constituents of natural products, and cyanine dyes such as indocyanine green. This new method was used to synthesize 41 indolenines with large functional group tolerance, and selected examples
描述了一种不寻常的芳族取代基来取代吲哚。使2-(2-甲氧基苯基)乙腈衍生物与各种烷基和芳基Li试剂反应以提供相应的吲哚烯产物,天然产物的成分和花青染料,例如吲哚花青绿。该新方法用于合成具有较大官能团耐受性的41种吲哚胺,并将选定的实例进一步转化为相应的吲哚啉染料。关键实验提供了这种亲核芳族取代机理的见解。