Ru(II)-catalyzed ortho-amidation and decarboxylation of aromatic acids: a versatile route to meta-substituted N-aryl benzamides
作者:Xian-Ying Shi、Xue-Fen Dong、Juan Fan、Ke-Yan Liu、Jun-Fa Wei、Chao-Jun Li
DOI:10.1007/s11426-015-5364-3
日期:2015.8
attention. However, employing it as a traceless direction group has rarely been reported. We developed the ruthenium-catalyzed amidation of substituted benzoic acids with isocyanates via directed C-H functionalization followed by decarboxylation to afford the corresponding meta-substituted N-aryl benzamides, in which the carboxylate serves as a unique, removable directing group. Notably, this protocol
羧酸盐作为一个有前途和有价值的指导团体,引起了广泛的关注。然而,很少有报道将其用作无痕的方向小组。我们通过直接的CH官能化,然后通过脱羧反应,开发了钌催化的异氰酸酯取代的苯甲酸与异氰酸酯的酰胺化反应,提供了相应的间位取代的N-芳基苯甲酰胺,其中羧酸盐充当了一个独特的可移动的导向基团。值得注意的是,该方案可以为获得间取代的N-芳基苯甲酰胺提供有效的替代方法,后者比邻取代的类似物难于制备。