Visible-light-promoted tandem decarboxylation coupling/cyclization of N-aryl glycines with quinoxalinones: Easy access to tetrahydroimidazo [1,5-a]quinoxalin-4(5H)-ones  

作　　者：Zhen Tang Chao Pi Yangjie Wu Xiuling Cui 

机构地区：[1]Henan Key Laboratory of Chemical Biology and Organic Chemistry,Key Laboratory of Applied Chemistry of Henan Universities,Green Catalysis Center,College of Chemistry,Zhengzhou University,Zhengzhou,450052,China

出　　处：《Green Synthesis and Catalysis》2024年第1期31-34,共4页绿色合成与催化（英文）

基　　金：We acknowledge partial financial support from the Ministry of Science and Technology of China(No.2016YFE0132600);Henan Center for Outstanding Overseas Scientists(No.GZS2020001)and Zhengzhou University。

摘　　要：A visible-light-promoted formal[2+2+1]cyclization of N-aryl glycines with quinoxalin-2(1H)-ones to synthesize tetrahydroimidazo[1,5-a]quinoxalin-4(5H)-ones have been developed.The protocol features operational simplicity,mild reaction conditions with blue LED light employing Ru(bpy)3Cl2.6H2O as a photoredox catalyst,a combination of O2 from air and Cu(OAc)2 as the oxidant and broad substrate applicability.

关 键 词：CYCLIZATION DECARBOXYLATION Visible-light-promoted Quinoxalin-2(1H)-ones Mild conditions 

分 类 号：O62[理学—有机化学]