Access to 1-indolyltetrahydro-β-carbolines <i>via</i> metal-free cross-dehydrogenative coupling: the total synthesis of eudistomin U, isoeudistomin U and 19-bromoisoeudistomin U
作者:Ganapathy Ranjani、Rajagopal Nagarajan
DOI:10.1039/d0cc06958b
日期:——
synthesized in excellent to moderate yields. Temperature, time and concentration control resulted in mono indolylation selectively. Moreover, the total synthesis of eudistomin U and isoeudistomin U and the first total synthesis of 19-bromoisoeudistomin U were accomplished.
开发了一种高度选择性和引人入胜的无金属的交叉脱氢偶联剂,用于两个反应性亲核试剂(如四氢-β-咔啉和吲哚)的交叉偶联。以优异至中等的产率合成了一系列1-吲哚基四氢-β-咔啉衍生物。温度,时间和浓度控制可选择性地导致单吲哚基化。此外,完成了乙二胺四乙酸U和异丁烯二醛U的全合成以及19-溴异丁二酮U的首次全合成。