Copper-Catalyzed Selective 1,2-Difunctionalization of N-Heteroaromatics through Cascade C–N/C═C/C═O Bond Formation
Autor: | He Qianlin, Feng Xie, Zhongzhi Zhu, Wanyi Liang, Xiuwen Chen, Guo Ziyin, Chuanjiang Xia, Yibiao Li |
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Rok vydání: | 2020 |
Předmět: | |
Zdroj: | Organic Letters. 22:7976-7980 |
ISSN: | 1523-7052 1523-7060 |
DOI: | 10.1021/acs.orglett.0c02910 |
Popis: | This study presents an efficient strategy for constructing 1,2-difunctionalized quinoline derivatives via the multicomponent cascade coupling of N-heteroaromatics with alkyl halides and different terminal alkynes. This reaction was achieved through sequential functionalization at the one- and two-positions of quinolines, which displayed a broad substrate scope, environmental friendliness, excellent functional group tolerance, high atom efficiency, and chemoselectivity. The multicomponent coupling involved the abnormal construction of new C-N, C═C, and C═O bonds in one pot. The applicability of this method was further demonstrated by the late-stage functionalization of complex drug molecules under the established conditions. |
Databáze: | OpenAIRE |
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