Abstract
Aliphatic α-hydroxyamino oximes reacted with perfluoroaromatic aldehydes to give α-perfluoroaryl nitrones which underwent cyclization in acetic acid with the formation of 4,5-dialkyl-2-perfluoroaryl-1H-imidazol-1-ols. The latter were also obtained directly from aliphatic α-hydroxyamino oximes and perfluoroaromatic aldehydes in acetic acid without isolation of intermediate nitrones. The reaction of 4,5-dimethyl-2-perfluoroaryl-1H-imidazol-1-ols with chloroacetone afforded 4,5-dimethyl-2-perfluoroaryl-1H-imidazoles.
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ACKNOWLEDGMENTS
Analytical and spectral data were obtained at the joint chemical research center, Siberian Branch, Russian Academy of Sciences.
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This study was performed in the framework of state assignment for the Novosibirsk Institute of Organic Chemistry, Siberian Branch, Russian Academy of Sciences.
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Translated from Zhurnal Organicheskoi Khimii, 2021, Vol. 57, No. 12, pp. 1752–1758 https://doi.org/10.31857/S0514749221120107.
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Os’kina, I.A., Vinogradov, A.S., Selivanov, B.A. et al. Synthesis of 4,5-Dialkyl-2-perfluoroaryl-1H-imidazol-1-ols and 4,5-Dimethyl-2-perfluoroaryl-1H-imidazoles. Russ J Org Chem 57, 1968–1973 (2021). https://doi.org/10.1134/S1070428021120101
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DOI: https://doi.org/10.1134/S1070428021120101