Metal-free, Bronsted acid-mediated synthesis of coumarin derivatives from phenols and propiolic acids

被引：27
|
作者：
Choi, Hyuck [1 ]
Kim, Jaehyun [1 ]
Lee, Kooyeon [1 ,2 ]
机构：
[1] Kangwon Natl Univ, Dept Biohlth Technol, Chunchon 200701, South Korea
[2] Kangwon Natl Univ, Inst Biosci & Biotechnol, Chunchon 200701, South Korea
来源：
TETRAHEDRON LETTERS | 2016年 / 57卷 / 32期
基金：
新加坡国家研究基金会;
关键词：
Coumarin; Bronsted acid; Trifluoromethanesulfonic acid; Condensation; Cyclization; N-SULFONYL AZIDES; C-H BONDS; HYDROAMINATIONS; COMPLEXES; CYCLIZATION; MILD;
D O I：
10.1016/j.tetlet.2016.06.039
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A novel synthesis of coumarin derivatives by Bronsted acid-mediated condensation and intramolecular cyclization of phenols and propiolic acids was reported. This transformation requires the use of TfOH in place of a conventional metal mediator, and it occurs under mild conditions and provides rapid access to coumarin derivatives in good yields. (C) 2016 Published by Elsevier Ltd.
引用
收藏
页码：3600 / 3603
页数：4
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