Copper-Catalyzed Di- and Trifluoromethylation of α,β-Unsaturated Carboxylic Acids: A Protocol for Vinylic Fluoroalkylations
作者:Zhengbiao He、Tao Luo、Mingyou Hu、Yanjing Cao、Jinbo Hu
DOI:10.1002/anie.201200140
日期:2012.4.16
Dual action: The Lewis acid CuF2⋅2 H2O efficiently catalyzes the reaction between electrophilic fluoroalkylating agents and α,β‐unsaturated carboxylic acids by dually activating both reactants, thus affording di‐ and trifluoromethyl alkenes in high yields with excellent E/Z selectivity.
双重作用:作为路易斯酸CUF 2 ⋅2ħ 2 ö有效地双重激活两种反应物催化电氟烷基化剂和α,β不饱和羧酸之间的反应,从而得到二-和以高收率和优异的三氟甲基烯烃ë / ž选择性。