Room-Temperature<i>ortho</i>-Alkoxylation and -Halogenation of<i>N</i>-Tosylbenzamides by Using Palladium(II)-Catalyzed CH Activation
作者:Florent Péron、Christine Fossey、Jana Sopkova-de Oliveira Santos、Thomas Cailly、Frédéric Fabis
DOI:10.1002/chem.201303923
日期:2014.6.10
The N‐tosylcarboxamide group can direct the room‐temperature palladium‐catalyzed CH alkoxylation and halogenation of substituted arenes in a simple and mild procedure. The room‐temperature stoichiometric cyclopalladation of N‐tosylbenzamide was first studied, and the ability of the palladacycle to react with oxidants to form CX and CO bonds under mild conditions was demonstrated. The reaction conditions
该Ñ -tosylcarboxamide组可以指示室温钯催化Ç ħ烷氧基化和以简单和温和的过程取代的芳烃的卤化。的室温化学计量cyclopalladation Ñ -tosylbenzamide首次研究,和钯化合物的能力与氧化剂以形成下反应 X和C 温和的条件下键证明O操作。反应条件则适于被推进室温邻-alkoxylations和邻位的-halogenations Ñ使用钯作为催化剂的甲苯磺酰基苯甲酰胺。研究了烷氧基化和卤化的范围和局限性,并评估了通过亲核加成反应对N-甲苯磺酰基甲酰胺基团进行的后续功能转化。这种方法学提供了一条简单而温和的途径来开发功能多样的芳烃。