1609939-41-4Relevant articles and documents
Tunable Synthesis of 3-Hydroxylisoquinolin-1,4-dione and Isoquinolin-1-one Enabled by Copper-Catalyzed Radical 6- endo Aza-cyclization of 2-Alkynylbenzamide
Liu, Renzhi,Li, Meng,Xie, Wenlin,Zhou, Hongwei,Zhang, Yajing,Qiu, Guanyinsheng
, p. 11763 - 11773 (2019/10/02)
In this work, switchable synthesis of isoquinolin-1-one and 3-hydroxylisoquinolin-1,4-dione from 2-alkynylbenzamide is reported. The transformation works well with good yields and a broad reaction scope. The synthetic switch for providing isoquinolin-1-one and 3-hydroxylisoquinolin-1,4-dione is enabled by the use of a N2 or O2 atmosphere. Mechanism studies show that the reaction proceeds in a regioselective manner via a N-center radical 6-endo-dig aza-cyclization pathway.