Catalytic Formation of Ketones from Unactivated Esters through Rhodium Chelation-Assisted C–O Bond Activation
作者:Jingjing Wang、Sujing Zuo、Weiqiang Chen、Xinrui Zhang、Kaixin Tan、Yun Tian、Jianhui Wang
DOI:10.1021/jo400949p
日期:2013.9.6
A new method for building aryl aryl ketones containing heterocyclic rings through chelation-assisted C–O bond activation catalyzed by a rhodium complex has been developed. In this reaction, methyl quinoline-8-carboxylate, methyl quinoxaline-5-carboxylate, and their derivatives were reacted with an excess amount of a substituted phenyl boronic acid in the presence of a rhodium(I) complex to give substituted
开发了一种新的方法,该方法通过铑配合物催化的螯合辅助C–O键活化来构建含杂环的芳基芳基酮。在该反应中,在铑(I)络合物的存在下,使喹啉8-羧酸甲酯,喹喔啉-5-羧酸甲酯及其衍生物与过量的取代的苯基硼酸反应,得到取代的苯基(喹啉-中高收率的8-基)甲酮,苯基喹喔啉-5-基甲酮及其衍生物。当前的方法提供了非常有利的合成途径,以有效地构建具有8-苯甲酰基喹啉核心结构的相关药物。这种方法对于药物化学家来说可能是特别有价值的,因为它可以将多功能酮部分后期引入复杂的支架中,从而实现面向多样性的合成策略。