Cu-Catalyzed Arylation of Bromo-Difluoro-Acetamides by Aryl Boronic Acids, Aryl Trialkoxysilanes and Dimethyl-Aryl-Sulfonium Salts: New Entries to Aromatic Amides
作者:Satenik Mkrtchyan、Michał Jakubczyk、Suneel Lanka、Michael Pittelkow、Viktor O. Iaroshenko
DOI:10.3390/molecules26102957
日期:——
copper-catalyzed direct arylation. Readily available and structurally simple aryl precursors such as aryl boronic acids, aryl trialkoxysilanes and dimethyl-aryl-sulfonium salts were used as the source for the aryl substituents. The scope of the reactions was tested, and the reactions were insensitive to the electronic nature of the aryl groups, as both electron-rich and electron-deficient aryls were successfully
我们描述了一种以机制为导向的合成方法发现,该方法能够利用铜催化的直接芳基化从 2-溴-2,2-二氟乙酰胺制备芳香酰胺。使用易于获得且结构简单的芳基前体,例如芳基硼酸、芳基三烷氧基硅烷和二甲基芳基锍盐作为芳基取代基的来源。测试了反应的范围,并且反应对芳基的电子性质不敏感,因为富电子和缺电子的芳基都被成功引入。多种 2-溴-2,2-二氟乙酰胺(作为脂肪族或芳香族仲酰胺或叔酰胺)在开发的条件下也具有反应性。所描述的合成方案显示出优异的效率,并成功用于以良好到优异的产率快速制备各种芳香酰胺。反应规模扩大至克级。