Metal-free, visible-light-induced C(sp2)-H functionalization/C-O bond formation for the synthesis of flavones using air as an oxidant

被引：3

作者：

Bai, Yuntao ^{[1
,2
]}

Yang, Manqiang ^{[1
,2
]}

Lin, Shao-Xia ^{[1
,2
]}

Borse, Rahul Anil ^{[2
,3
]}

Thoke, Mahesh Bhagwan ^{[2
]}

Yuan, Daqiang ^{[2
]}

机构：

[1] Fuzhou Univ, Coll Chem, Fuzhou 350116, Peoples R China

[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China

[3] Univ Chinese Acad Sci, Beijing, Peoples R China

来源：

TETRAHEDRON LETTERS | 2023年 / 121卷

基金：

中国国家自然科学基金;

关键词：

Flavones; Photocatalysis; C(sp2)-H activation; Aerobic oxidation; ONE-POT SYNTHESIS; C-H FUNCTIONALIZATION; SINGLET OXYGEN; CHROMONES; SALICYLALDEHYDES; ACTIVATION; ANNULATION; OXIDATION; CATALYSTS; BENZENE;

D O I：

10.1016/j.tetlet.2023.154481

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A green and practical method for synthesizing high value-added flavones from readily available chalcones based on visible-light-induced C(sp2)-H functionalization /C-O bond formation is described. This reac-tion utilizes organic dye (Rose Bengal) as the photosensitizer and atmospheric oxygen as the green oxi-dant and oxygen source without any metals and external additive requirement. Through this methodology, a variety of flavones were synthesized in moderate to good yield.(c) 2023 Elsevier Ltd. All rights reserved.

引用

页数：6

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