作者:Xue‐Ying Zhang、Shi‐Ping Sun、Yue‐Qian Sang、Xiao‐Song Xue、Qiao‐Qiao Min、Xingang Zhang
DOI:10.1002/anie.202306501
日期:2023.9.11
A new mode of difluorocarbene transfer reaction that tames difluorocarbene to couple with two electrophiles via palladium catalysis has been developed. This reaction overcomes the intrinsic limitations of electrophilic difluorocarbene and allows difluoromethylation of various aryl bromides and aryl triflates. Experimental mechanistic studies revealed that a palladium(0/II) pathway is responsible for
开发了一种新的
二氟卡宾转移反应模式,通过
钯催化将
二氟卡宾与两个亲电子试剂偶联。该反应克服了亲电子
二氟卡宾的固有局限性,并允许各种芳基
溴和芳基
三氟甲磺酸酯的二
氟甲基化。实验机制研究表明,
钯(0/II) 途径是造成这种还原反应的原因。