Catalytic Prenylation and Reverse Prenylation of Indoles with Isoprene: Regioselectivity Manipulation through Choice of Metal Hydride
作者:Yan‐Cheng Hu、Ding‐Wei Ji、Chao‐Yang Zhao、Hao Zheng、Qing‐An Chen
DOI:10.1002/anie.201901025
日期:2019.4.8
The basic industrial feedstock isoprene was employed as a building block to install prenyl and reverse‐prenyl groups onto indoles. The regioselectivity can be manipulated by the choice of metal hydride. Reverse‐prenylated indoles were attained with high selectivity when using Rh−H. By switching to a Pd−H catalyst, selectivity toward prenylated indoles was achieved. This regiodivergent method also features
基本的工业原料
异戊二烯被用作将
异戊二烯基和反向
异戊二烯基安装到
吲哚上的结构单元。区域选择性可以通过选择
金属
氢化物来控制。使用Rh-H时,可以实现高选择性的反向
异戊二烯基
吲哚。通过转换为Pd-H催化剂,可以实现对烯丙基化
吲哚的选择性。该区域发散方法还具有高原子经济性而无
化学计量副产物形成的特征。