Modular Divergent Synthesis of Functionalized Indoles via TFA-Promoted Amino-Claisen Rearrangement at Room Temperature
作者:Yuxi Zhang、Yicheng He、Teng Liu、Wusheng Guo
DOI:10.1021/acs.orglett.3c00764
日期:2023.4.21
A conceptually novel approach for the modular and divergent synthesis of highly functionalized indoles via trifluoroacetic acid-promoted amino-Claisen rearrangement is reported. This metal-free protocol could be performed at room temperature with wide functional group tolerance. The substitution type of the resultant indoles could be easily adjusted by the variation of the starting propargyl amines
报道了一种通过三氟乙酸促进的氨基-克莱森重排模块化和发散合成高度功能化吲哚的概念性新方法。这种无金属协议可以在室温下进行,具有广泛的官能团耐受性。所得吲哚的取代类型可以很容易地通过起始炔丙胺的变化来调整。通过简单的实验操作,所得产物可以很容易地转化为不同附加值的吲哚衍生物。