Copper-Catalyzed Tandem Cyclization/Direct C(sp2)-H Annulation of Azide-Ynamides via ?-Imino Copper Carbenes: Access to Azepino[2,3-b:4,5-b?]diindoles

被引:8
作者
Chen, Yi [1 ]
Yan, Yao-Hong [1 ]
Zhu, Bo-Han [1 ]
Chen, Fan [1 ]
Li, Long [1 ]
Qian, Peng-Cheng [1 ,2 ]
机构
[1] Wenzhou Univ, Coll Chem & Mat Engn, Wenzhou 325035, Peoples R China
[2] Wenzhou Univ, Inst New Mat & Ind Technol, Wenzhou Key Lab Technol & Applicat Environm Funct, Wenzhou 325000, Peoples R China
基金
中国国家自然科学基金;
关键词
INTERMOLECULAR REACTION; 2-ALKYNYL ARYLAZIDES; CASCADE CYCLIZATION; RAPID ACCESS; GOLD; INDOLES; DIYNES; REGIOSELECTIVITY; CYCLOADDITION; CONSTRUCTION;
D O I
10.1021/acs.orglett.3c00434
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A novel copper-catalyzed tandem cyclization/direct C(sp2)-H annulation of phenyl azide-ynamides via alpha-imino copper carbenes has been developed, which provides a concise and flexible approach for the construction of a range of valuable azepino[2,3-b:4,5b ']diindoles in mostly good to excellent yields with high chemoselectivities. This tandem reaction also exhibits a broad substrate scope, excellent functional group tolerance, simple operation, and mild reaction conditions.
引用
收藏
页码:2063 / 2067
页数:5
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