Palladium-Catalysed Synthesis of α-(Trifluoromethyl)styrenes by Means of Directed C-H Bond Functionalization
作者:Qun Zhao、Tatiana Besset、Thomas Poisson、Jean-Philippe Bouillon、Xavier Pannecoucke
DOI:10.1002/ejoc.201501217
日期:2016.1
We report the first introduction of 2-bromo-3,3,3-trifluoropropene (BTP) by directed C–H bond functionalization. The developed method gives straightforward access to α-(trifluoromethyl)styrene derivatives without prior prefunctionalization of the substrates. This palladium-catalysed transformation was applied to a broad range of substrates, and the corresponding trifluoromethylated products were obtained
我们报告了通过定向 C-H 键功能化首次引入 2-溴-3,3,3-三氟丙烯 (BTP)。开发的方法可以直接获得 α-(三氟甲基)苯乙烯衍生物,而无需预先对底物进行预官能化。这种钯催化的转化应用于广泛的底物,并以良好的产率获得了相应的三氟甲基化产物。这种方法代表了以前用于访问此类分子的经典方法的替代途径。