Boron Trichloride‐Mediated Synthesis of Indoles
<i>via</i>
the Aminoboration of Alkynes
作者:Jiahang Lv、Binlin Zhao、Li Liu、Ying Han、Yu Yuan、Zhuangzhi Shi
DOI:10.1002/adsc.201800509
日期:2018.11.5
We describe an efficient catalyst‐ and metal‐free aminoboration of alkynes to 3‐borylated indoles using one of the least expensive boron sources, BCl3. The major dichloro(indolyl)borane products can be used for the in situ construction of useful 3‐Bpin indoles. This simple and mild method provides a novel and efficient approach for the synthesis of various 3‐borylated indoles with high regioselectivity
我们描述了使用最便宜的硼源之一BCl 3将炔烃有效地进行无催化剂和金属的氨基硼酸酯化,使其生成3硼化的吲哚。主要的二氯(吲哚基)硼烷产品可用于原位构建有用的3-Bpin吲哚。这种简单温和的方法为合成具有高区域选择性和宽底物范围的各种3硼化的吲哚提供了一种新颖而有效的方法。