Chen J, Xiao L, Qi L. Electrochemical annulation of 1,2,3-benzotriazinones with alkynes to access isoquinolin-1(2
H)-ones.
Org Biomol Chem 2023;
21:7295-7299. [PMID:
37646442 DOI:
10.1039/d3ob01161e]
[Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
An eco-friendly approach for electrochemical radical cascade annulation of 1,2,3-benzotriazinones with alkynes is described. Under catalyst-free and external reductant-free electrolysis conditions, a range of isoquinolin-1(2H)-ones were obtained in moderate to good yields. Cyclic voltammetry and control studies suggest that the reaction proceeds via a radical pathway. Furthermore, this approach could be easily scaled up.
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