期刊
TETRAHEDRON LETTERS
卷 96, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2022.153720
关键词
Metal-and oxidant-free; Coumarins; Photocatalytic alkylation; Triphenylphosphine; Sodium iodide
资金
- NSF of China [21878072, 21706058, 21573065]
- Natural Science Foundation of Hunan Province [2020JJ2011]
A metal-and oxidant-free photocatalytic C-H alkylation of coumarins was developed using triphenylphosphine and sodium iodide in the presence of blue LEDs irradiation. Easily available alkyl N-hydroxyphthalimide esters were used as the alkylation reagents. The protocol achieved various 3-alkylated coumarins and quinoxalinones with excellent C-3 regioselectivity.
Metal-and oxidant-free photocatalytic C-H alkylation of coumarins is developed in the presence of triphenylphosphine and sodium iodide under blue LEDs irradiation by using the easily available alkyl N-hydroxyphthalimide esters as the alkylation reagents. The metal-and oxidant-free decarboxylative C-H coupling protocol provides various 3-alkylated coumarins, as well as quinoxalinones, in satisfactory yields with excellent C-3 regioselectivity.(c) 2022 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据