作者:Jeffrey T. Kuethe、Ian W. Davies
DOI:10.1016/j.tet.2006.05.007
日期:2006.12
A practical, highly efficient protocol has been developed for the synthesis of functionalized 2-arylindole-4-carboxylic amide derivatives. Commercially available methyl 2-methyl-3-nitrobenzoate gave substituted nitrostyrene benzoic acids by reaction with aromatic aldehydes in the presence of DBU in DMSO. Conversion of these products to the desired amides was followed by Pd-catalyzed reductive cyclization
已经开发出实用,高效的方案,用于合成官能化的2-芳基吲哚-4-羧酸酰胺衍生物。在DMSO中,在DBU存在下,通过与芳族醛反应,可商购的2-甲基-3-硝基苯甲酸甲酯得到取代的硝基苯乙烯苯甲酸。这些产物转化为所需的酰胺后,通过Pd催化的还原环化,使用一氧化碳作为末端还原剂,以简单的三步顺序以优异的总收率提供2-芳基吲哚-4-羧酸酰胺衍生物。