Copper-Catalyzed Reactions of Alkenyl Boronic Esters via Chan–Evans–Lam Coupling/Annulation Cascades: Substrate Selective Synthesis of Dihydroquinazolin-4-ones and Polysubstituted Quinolines
作者:Yuge Li、Zifeng Cao、Zhijun Wang、Liang Xu、Yu Wei
DOI:10.1021/acs.orglett.2c02522
日期:2022.9.16
nucleophiles have been established, providing new approaches for one-pot assembly of azacycles. Following the Chan–Evans–Lam C–N couplings, the cyclization processes occur via divergent pathways based on the utilized substrates, affording hydroamination product dihydroquinazolin-4-ones or aromatization product quinolines. Via this one-pot C–N coupling/annulation cascade, the target substituted azacycles can
已经建立了铜催化的烯基硼酸酯和 N-H 基亲核试剂之间的级联环化反应,为氮杂环的一锅组装提供了新方法。在 Chan-Evans-Lam C-N 偶联之后,环化过程通过基于所用底物的不同途径发生,提供加氢胺化产物 dihydroquinazolin-4-ones 或芳构化产物喹啉。通过这种一锅 C-N 偶联/环化级联,可以在每种情况下以中等至良好的产率获得目标取代的氮杂环。