Rapid and selective access to three distinct sets of indole-based heterocycles from a single set of Ugi-adducts under microwave heating
作者:Lei Zhang、Fei Zhao、Mingyue Zheng、Yun Zhai、Hong Liu
DOI:10.1039/c3cc00111c
日期:——
Three distinct sets of indole-based heterocycles were rapidly and selectively synthesized from the same set of Ugi-adducts under microwave heating in a reaction-condition-controlled manner. Notably, an unprecedented metal-free intramolecular sp3-hybridized C–H arylation using only cesium carbonate was discovered.
三种不同的以吲哚为基础的杂环化合物在微波加热下,以反应条件可控的方式,从相同的一组Ugi加合物中迅速且选择性地合成。值得注意的是,发现了一种前所未有的无金属催化的分子内sp3杂化C-H芳基化反应,仅使用碳酸铯。