Low Catalyst Loadings for Copper-Catalyzed O-Arylation of Phenols with Aryl and Heteroaryl Halides under Mild Conditions
作者:Yong-Chua Teo、Fui-Fong Yong、Yaw-Kai Yan、Guan-Leong Chua
DOI:10.1055/s-0031-1290110
日期:2012.1
A practical and mild strategy has been developed for the cross-coupling of O-arylation of phenol with differently substituted aryl halides and heteroaryl iodides using low catalyst loading of copper iodide under low operating temperature in DMF with TMHD as the ligand and Cs2CO3 as the base. This method tolerates a variety of functional groups including sterically hindered phenols and heteroaryl iodides
已经开发了一种实用且温和的策略,用于在 DMF 中以 TMHD 为配体和 Cs2CO3 为碱,在低操作温度下,使用低催化剂负载量的碘化铜将苯酚与不同取代的芳基卤化物和杂芳基碘化物的 O-芳基化交叉偶联. 该方法可耐受各种官能团,包括空间位阻酚和杂芳基碘化物,以提供良好至极好的产率(高达 95%)的产品。