Copper-Catalyzed Nitrogen Atom Transfer to Isoquinolines via C–N Triple Bond Cleavage and Three-Component Cyclization
作者:Lebin Su、Shimin Xie、Jianyu Dong、Feng Liu、Shuang-Feng Yin、Yongbo Zhou
DOI:10.1021/acs.orglett.2c02257
日期:2022.8.19
A copper(I)-catalyzed tandem reaction of 2-bromoaryl ketones, terminal alkynes, and CH3CN is developed, which combines N atom transfer and three-component [3 + 2 + 1] cyclization, and efficiently produces densely functionalized isoquinolines in a facile, highly selective, and general manner. In the reaction, the formation of aromatic C–N bonds along with the complete C–N triple bond cleavage is first
开发了一种铜 (I) 催化的 2-溴芳基酮、末端炔烃和 CH 3 CN 的串联反应,该反应结合了 N 原子转移和三组分 [3 + 2 + 1] 环化,在一种简单、高度选择性和通用的方式。在该反应中,首先实现了芳香C-N键的形成以及C-N三键的完全断裂;Cu(III)-乙炔化物可以作为中间体,允许高选择性的 6 - endo - dig环化。