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Catalyst-free rapid synthesis of benzo[4,5]imidazo[1,2-a]-pyrimidine-3-carboxamides via four-component coupling in one pot

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Abstract

A new class of fused tricyclic benzo[4,5]imidazo[1,2-a]-pyrimidine-3-carboxamide derivatives was synthesized via an environmentally benign one pot sequential four-component condensation reaction of an amine, 2,2,6-trimethyl-4H-1,3-dioxin-4-one, an aldehyde and 1H-benzo[d]imidazol-2-amine without using catalyst in good yields.

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Acknowledgments

We gratefully acknowledge financial support from the Iran National Elites Foundation (INEF), Research Council of Shahid Beheshti University and Ministry of Higher Education of Malaysia (Grant No. UM.C/HIR/MOHE/SC/12).

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Correspondence to Ahmad Shaabani.

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Shaabani, A., Seyyedhamzeh, M., Ganji, N. et al. Catalyst-free rapid synthesis of benzo[4,5]imidazo[1,2-a]-pyrimidine-3-carboxamides via four-component coupling in one pot. J IRAN CHEM SOC 11, 481–487 (2014). https://doi.org/10.1007/s13738-013-0321-6

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