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Iron(II)-Catalyzed Denitration Reaction: Synthesis of 3-Methyl-2-arylimidazo[1,2-a]pyridine Derivatives from Aminopyridines and 2-Methylnitroolefins

Hao Yan, Sizhuo Yang, Xiai Gao, Kang Zhou, Chao Ma, Rulong Yan*, Guosheng Huang*

*State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. of China, Email:,

H. Yan, S. Yang, X. Gao, K. Zhou, C. Ma, R. Yan, G. Huang, Synlett, 2012, 23, 2961-2962.

DOI: 10.1055/s-0032-1317685


An iron-catalyzed denitration reaction enables the synthesis of 3-methyl-2-arylimidazo[1,2-a]pyridine derivatives in good yields from aminopyridines and 2-methyl-nitroolefins. The procedure is simple and inexpensive and tolerates various functional groups.

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Cu(I)-Catalyzed Synthesis of Imidazo[1,2-a]pyridines from Aminopyridines and Nitroolefins Using Air as the Oxidant

R.-L. Yan, H. Yan, C. Ma, Z.-Y. Ren, X.-A. Gao, G.-S. Huang, Y.-M. Liang, J. Org. Chem., 2012, 77, 2024-2028.

Key Words

iron catalysis, denitration, heterocycles, cyclization, imidazo[1,2-a]pyridines

ID: J60-Y2012-3790