Palladium(II)/copper(I)-catalyzed sequential CH arylation and oxidative CN bond cleavage of aryl sulfonamino acids: Efficient one-pot synthesis of primary biaryl sulfonamides
作者:Wei Liu、Yongli Zhao、Fei Yi、Junmin Chen
DOI:10.1016/j.tet.2016.10.056
日期:2016.12
A versatile strategy for the one-pot synthesis of primary biaryl-based sulfonamides has been developed via a tandem process consisting of palladium-catalyzed CH arylation and subsequent copper-catalyzed oxidative CN bond cleavage of aryl sulfonamino acids. Both electron-withdrawing and electron-donating functionalities can be introduced into the ortho positions of arenes bearing a variety of substituents
通过串联方法开发了一种通用的基于联芳基伯酰胺的单罐合成策略,该方法包括钯催化的C H芳基化和随后的铜催化的芳基磺胺酸的氧化C N键裂解。吸电子和给电子功能都可以引入带有多种取代基的芳烃的邻位。氨基酸部分不仅充当引导基团,而且充当氨合成等同物。重要的是,通过使用空气作为唯一的氧化剂,在催化CuI的存在下,该导向基团被顺利地除去。