Multicomponent Synthesis of Iminocoumarins via Rhodium-Catalyzed C—H Bond Activation
作者:Zhan Chen、Shengnan Jin、Wenyao Jiang、Feimin Zhu、Yuqi Chen、Yingwei Zhao
DOI:10.1021/acs.joc.0c01303
日期:2020.8.21
We herein establish a multicomponent annulation method for the synthesis of valuable iminocoumarins using aryl thiocarbamates, internal alkynes, and sulfonamides as starting materials, which are safe and readily available. The key step is a Rh-catalyzed and sulfur-directed C—H bond activation. Preliminary mechanistic investigations suggested that the nucleophilic attack of the sulfonamide on an active
我们在本文中建立了一种多组分环合方法,用于以芳基硫代氨基甲酸酯,内部炔烃和磺酰胺为起始原料合成有价值的亚氨基香豆素,该方法安全且容易获得。关键步骤是Rh催化和硫导向的CH键活化。初步的机理研究表明,磺酰胺对活性亚胺阳离子的亲核攻击最终完成了亚胺片段。