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。