Cross-coupling reaction of organoalane reagents with 2-mercaptobenzo-5-membered heterocycles for efficient synthesis of benzo-5-membered heterocycle sulfides
作者:Rui-Qiang Luo、Shao Peng Guo、Hong-Liu Xiao、Qing-Han Li
DOI:10.1016/j.tet.2021.132564
日期:2022.1
A highly efficient and simple route for the synthesis of benzo-5-membered heterocycles sulfides has been developed by the cross-coupling reaction of 2-mercaptobenzo-5-membered heterocycles with (hetero)arylaluminum reagents. Various benzo-5-membered heterocycles sulfides derivatives can be obtained with 32–87% isolated yields under mild reaction conditions. The aryls bearing electron-donating or electron-withdrawing
通过 2-巯基苯并 5 元杂环与(杂)芳基铝试剂的交叉偶联反应,开发了一种高效且简单的合成苯并 5 元杂环硫化物的路线。在温和的反应条件下,可以以 32-87% 的分离产率获得各种苯并 5 元杂环硫化物衍生物。在 2-巯基苯并 5-元杂环中带有给电子或吸电子基团的芳基以 40-78% 的分离产率得到产物。广泛的底物范围和克级高效的典型维护使该协议成为合成苯并 5 元杂环硫化物衍生物的潜在实用方法。根据实验结果,提出了一种可能的催化循环。