Abstract
Reaction of 5,5-dimethyl-3-(2-chloroethyl)- and 5,5-diphenyl-3-(2-bromoethyl)- hydantoins with potassium 4-aminobenzoate in dimethylformamide in the presence of triethylbenzylammonium chloride leads to the formation of 2-[5,5-dimethyl(diphenyl)-2,4-dioxo-1,3-diazolidin-2-yl]ethyl-4-aminobenzoates. The latter were used for synthesis of new types of maleimides, namely 2-[5,5-dimethyl(diphenyl)-2,4-dioxo-1,3-diazolidin-2-yl]ethyl-4-(2,5-dioxo-1-azolin-1-yl) benzoates. Reactions of 5,5-dimethyl-1,3-di(2-chloroethyl) hydantoin with potassium 4-aminobenzoate or sodium 4-N-acetylaminophenolate at a molar ratio of 1:2 also lead to 3-monosubstituted products.
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Translated from Zhurnal Obshchei Khimii, 2021, Vol. 91, No. 8, pp. 1184–1191 https://doi.org/10.31857/S0044460X21080060.
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Kolyamshin, O.A., Mitrasov, Y.N., Danilov, V.A. et al. Some Features of Nucleophilic Substitution Reactions of N-2-Haloethyl Derivatives of 5,5-Substituted Hydantoins. Russ J Gen Chem 91, 1459–1465 (2021). https://doi.org/10.1134/S1070363221080065
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DOI: https://doi.org/10.1134/S1070363221080065