Copper-Catalyzed Cascade Cycloamination of α-Csp³-H Bond of N-Aryl Ketimines with Azides: Access to Quinoxalines

Tengfei Chen, Xun Chen, Jun Wei, Dongen Lin*, Ying Xie and Wei Zeng*

*School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510641, China, Email: denlinscut.edu.cn, zengweiscut.edu.cn

T. Chen, X. Chen, J. Wei, D. Lin, Y. Xie, W. Zeng, Org. Lett., 2016, 18, 2078-2081.

DOI: 10.1021/acs.orglett.6b00709

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Abstract

A copper-catalyzed cycloamination of α-Csp³-H bond of N-aryl ketimines with sodium azide provides an efficient access to quinoxalines. The reaction features mild conditions and a broad functional group tolerance.

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proposed mechanism

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Key Words

Quinoxalines, PIDA

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ID: J54-Y2016