Bronsted acid catalyzed Diels-Alder reactions of 2-vinylindoles and 3-nitrocoumarins: an expedient synthesis of coumarin-fused tetrahydrocarbazoles

被引:34
作者
Tan, Fen [1 ]
Li, Fang [1 ]
Zhang, Xiao-Xiao [1 ]
Wang, Xu-Fan [1 ]
Cheng, Hong-Gang [1 ]
Chen, Jia-Rong [1 ]
Xiao, Wen-Jing [1 ]
机构
[1] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Hubei, Peoples R China
基金
美国国家科学基金会;
关键词
Organocatalysis; Diels-Alder reaction; Coumarin; Tetrahydrocarbazole; INVERSE-ELECTRON-DEMAND; FRIEDEL-CRAFTS ALKYLATION; SIMPLE INDOLE ALKALOIDS; EFFICIENT ROUTE; ALPHA; BETA-UNSATURATED ALDEHYDES; SULFUR YLIDES; ORGANIC CATALYSIS; DERIVATIVES; ACTIVATION; ORGANOCATALYSIS;
D O I
10.1016/j.tet.2010.11.019
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A Bronsted acid catalyzed Diels-Alder reaction of 2-vinylindoles and 3-nitrocoumarins has been described. The methodology allows a rapid and expedient synthesis of a variety of coumarin-fused polycyclic indoles in good yields (up to 82%) with high diastereoselectivities (up to >19:1). (C) 2010 Published by Elsevier Ltd.
引用
收藏
页码:446 / 451
页数:6
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