Highly Regioselective Isoquinoline Synthesis via Nickel-Catalyzed Iminoannulation of Alkynes at Room Temperature
作者:Jian-Guo Sun、Xiao-Yu Zhang、Hua Yang、Ping Li、Bo Zhang
DOI:10.1002/ejoc.201800341
日期:2018.9.23
The air‐stable and inexpensive Ni(dppe)Cl2 along with Et3N efficiently catalyzes the iminoannulation of alkynes at room temperature, allowing for the preparation of important 3,4‐disubstituted and 3‐substituted isoquinolines in high yields with complete regioselectivity. These annulation reactions feature a broad substrate scope, easy scalability, operational simplicity, and excellent practicality
空气稳定且价格便宜的Ni(dppe)Cl 2以及Et 3 N在室温下可有效催化炔烃的亚氨基环化反应,从而可以高收率和完全的区域选择性制备重要的3,4-二取代和3-取代的异喹啉。这些成环反应的特点是基材范围广,可扩展性强,操作简便且实用性强。