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.
An I2O5-promoted decarboxylative trifluoromethylation of cinnamic acids
作者:Xiao-Jie Shang、Zejiang Li、Zhong-Quan Liu
DOI:10.1016/j.tetlet.2014.11.076
日期:2015.1
An I2O5-promoted decarboxylative trifluoromethylation of a series of cinnamicacids and their derivatives by using sodium trifluoromethanesulfinate in aqueous media was demonstrated. This strategy provides a safe and convenient access to various trifluoromethylated (E)-alkenes in a very high selectivity.
通过在水性介质中使用三氟甲亚磺酸钠,对一系列肉桂酸及其衍生物进行了I 2 O 5促进的脱羧三氟甲基化反应。该策略提供了以非常高的选择性安全便捷地获得各种三氟甲基化(E)烯烃的方法。