Base Metal-Controlled Chemodivergent Cyclization of Propargylamines for the Atom-Economic Synthesis of Nitrogen Heterocycles
作者:Hui Zhang、You Zi、Chenhui Cao、Weichun Huang、Aiwei Jiang、Chaowu Lu、Jie He、Yanfeng Tang、Zheng-Guang Wu
DOI:10.1021/acs.orglett.3c03725
日期:2023.12.22
quinoline-4-carboxylates, while iron-promoted cascade amino Claisen rearrangement, aromatization, and aza-Michael addition afford diverse 2-substituted indole-3-carboxylate derivatives. Excellent selectivity, broad functional group tolerance, mild conditions, and flexible late-stage functionalization illustrate the high efficiency and synthetic utility of this chemodivergent reaction.
在此,开发了一种基于贱金属的炔丙胺化学发散环化,用于氮杂环的原子经济构建。由于金属活化为炔丙胺的方式不同,铜催化的 6 -endo-dig环化生成功能化的 2-取代的喹啉-4-羧酸酯,而铁促进的级联氨基 Claisen 重排、芳构化和 aza-Michael 加成提供了多种2-取代的吲哚-3-羧酸酯衍生物。优异的选择性、广泛的官能团耐受性、温和的条件和灵活的后期官能化说明了这种化学发散反应的高效率和合成实用性。