Abstract
1,3-(Di)acetonylimidazolium and -benzimidazolium triiodides were synthesized in a one-pot fashion by reactions of imidazole, 3-(1H-imidazol-4-yl)prop-2-enoic acid, benzimidazole, benzimidazol-2-amine, and 2-ethylbenzimidazole with 1-iodopropan-2-one and molecular iodine under solvent-free conditions in the absence of a base and catalyst at room temperature. The reaction of 1H-benzimidazole-2-thiol with 1-iodopropan-2-one and iodine afforded 2-(2-oxopropylsulfanyl)imidazolium triiodide. The reaction direction and yield did not change when 2-iodo-1-(thiophen-2-yl)ethanone was used instead of 1-iodopropan-2-one.
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This study was performed using the facilities of the Baikal Joint Analytical Center, Siberian Branch, Russian Academy of Sciences.
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Russian Text © The Author(s), 2019, published in Zhurnal Organicheskoi Khimii, 2019, Vol. 55, No. 7, pp. 1084–1088.
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Shagun, L.G., Dorofeev, I.A., Zhilitskaya, L.V. et al. Synthesis of Imidazolium and Benzimidazolium Triiodides. Russ J Org Chem 55, 983–987 (2019). https://doi.org/10.1134/S107042801907011X
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DOI: https://doi.org/10.1134/S107042801907011X