Carboxylic Acids as Traceless Directing Groups for the Rhodium(III)-Catalyzed Decarboxylative CH Arylation of Thiophenes
作者:Yuanfei Zhang、Huaiqing Zhao、Min Zhang、Weiping Su
DOI:10.1002/anie.201411701
日期:2015.3.16
A rhodium(III)‐catalyzed carboxylic acid directed decarboxylative CH/CH cross‐coupling of carboxylic acids with thiophenes has been developed. With a slight adjustment of the reaction conditions based on the nature of the substrates, aryl carboxylic acids with a variety of substituents could serve as suitable coupling partners, and a broad variety of functional groups were tolerated. This method
已开发出铑(III)催化的羧酸与羧酸与噻吩的直接脱羧CH / CH交叉偶联。在基于底物的性质对反应条件进行轻微调整的情况下,具有多种取代基的芳基羧酸可以用作合适的偶联伴侣,并且可以耐受多种官能团。该方法提供了直接使用具有不同取代模式的联芳基支架的方法,其中许多取代模式通常是通过冗长的合成序列进行合成的。一个说明性的例子是通过目前的方法一步法克级合成具有生物活性的3,5-取代的2-芳基噻吩。