Copper-Catalyzed Difluoromethylation of β,γ-Unsaturated Carboxylic Acids: An Efficient Allylic Difluoromethylation
作者:Zhengbiao He、Mingyou Hu、Tao Luo、Lingchun Li、Jinbo Hu
DOI:10.1002/anie.201206556
日期:2012.11.12
Not one but two! A new strategy for the regiospecific construction of compounds with allylic CF2H groups has been developed. The decarboxylative (phenylsulfonyl)difluoromethylation of β,γ‐unsaturated carboxylic acids is catalyzed by a Lewis acid (CuCl2⋅2 H2O), and the resulting product easily undergoes desulfonylation.
不是一个而是两个!已经开发了具有烯丙基CF 2 H基团的化合物的区域特异性构建的新策略。的β,γ不饱和羧酸的脱羧(苯基磺酰基)二氟甲基是由一种路易斯酸(催化的CuCl 2 ⋅2ħ 2 O),将所得产物容易发生脱磺酰。