Eosin Y as a direct hydrogen-atom transfer photocatalyst for the C3-H acylation of quinoxalin-2(1H)-ones

被引：39
作者：
Ni, Hangcheng [1 ]
Li, Yu [1 ]
Shi, Xingzi [1 ]
Pang, Yi [2 ]
Jin, Congying [2 ]
Zhao, Fei [1 ]
机构：
[1] Chengdu Univ, Sichuan Ind Inst Antibiot, Jinhua Branch, 888 West Hai Tang Rd, Jinhua 321007, Zhejiang, Peoples R China
[2] Jinhua Polytech, Pharmaceut & Mat Engn Sch, 888 West Hai Tang Rd, Jinhua 321007, Zhejiang, Peoples R China
来源：
TETRAHEDRON LETTERS | 2021年 / 68卷
关键词：
Photocatalysis; Hydrogen-atom transfer; Aldehyde; Acylation; Quinoxalin-2(1H)-one; VISIBLE-LIGHT PHOTOCATALYSIS; DECARBOXYLATIVE ACYLATION; SYNTHETIC APPLICATIONS; PHOTOREDOX CATALYSIS; DECATUNGSTATE ANION; RADICAL GENERATION; METAL; FUNCTIONALIZATION; ACCESS; ACIDS;
D O I：
10.1016/j.tetlet.2021.152915
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Visible light promoted eosin Y catalyzed selective C3-H acylation of quinoxalin-2(1H)-ones has been developed in a green and sustainable manner. In contrast to the conventional anionic eosin Y-based photoredox process, neutral eosin Y acts as the actual catalyst, which was responsible for the hydrogen-atom transfer (HAT) process to generate the acyl radical with readily available aldehydes as the radical precursor. (C) 2021 Elsevier Ltd. All rights reserved.
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页数：4
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