Synthesis of tri(di)fluoroethylanilines <i>via</i> copper-catalyzed coupling reaction of tri(di)fluoroethylamine with (hetero)aromatic bromides
作者:Suo Chen、Hui Wang、Wei Jiang、Pei-Xin Rui、Xiang-Guo Hu
DOI:10.1039/c9ob02271f
日期:——
have realized the first Ullmann type coupling reaction of tri(di)fluoroethylamine with (hetero)aromatic bromides, employing 5–20 mol% Cu2O and an oxalamide ligand [N-(2,4,6-trimethoxyphenyl)acetamide]. This efficient and practical method has the following features: (i) avoids the use of an expensive catalyst; (ii) does not require anhydrous solvent and strict air extrusion; (iii) uses bench stable and
我们已经实现了第一个三(二)氟乙胺与(杂)芳族溴化物的Ullmann型偶联反应,采用5–20 mol%Cu 2 O和草酰胺配体[ N-(2,4,6-三甲氧基苯基)乙酰胺]。这种有效和实用的方法具有以下特点:(i)避免使用昂贵的催化剂;(ii)不需要无水溶剂和严格的空气挤出;(iii)使用稳定且廉价的(杂)芳族溴化物;(iv)适合于氟烷基化的杂芳族底物的合成;(v)适合于克级合成。这项工作还显示了在铜催化的偶联反应中烷基胺的“负氟效应”。