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CBr4 Mediated Oxidative C-N Bond Formation: Applied in the Synthesis of Imidazo[1,2-α]pyridines and Imidazo[1,2-α]pyrimidines

Congde Huo*, Jing Tang, Haisheng Xie, Yajun Wang and Jie Dong

*College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China, Email: huocongde1978hotmail.com

C. Huo, J. Tang, H. Xie, Y. Wang, J. Dong, Org. Lett., 2016, 18, 1016-1019.

DOI: 10.1021/acs.orglett.6b00137 (free Supporting Information)


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Abstract

A carbon tetrabromide mediated oxidative carbon-nitrogen bond formation of 2-aminopyridines or 2-aminopyrimidines with β-keto esters or 1,3-diones provides substituted imidazo[1,2-α]pyridines or imidazo[1,2-α]pyrimidines under mild and metal-free conditions.

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Key Words

imidazo[1,2-α]pyridines, carbon tetrabromide


ID: J54-Y2016