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Synthesis and Some Transformations of 4-(2,5-Dihydro-2,5-dioxo-1H-pyrrrol-1-yl)benzoic and -Phenylacetic Acids Amides

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Abstract

The reactions of 4-aminobenzoic and 4-aminophenylacetic acids amides with maleic anhydride yielded the corresponding maleic acid monoamides, the cyclization of which gave 4-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)benzoic and 4-(2,5-dihydro-2,5-dioxo-1H-pyrrol-1-yl)phenylethanoic acids amides. Their reactions with secondary amines afforded the corresponding 4-(3-dialkylamino-2,5-dioxo-2,3,4,5-tetrahydro-1H-pyrrol-1-yl)benzoic and 4-(3-dialkylamino-2,5-dioxo-2,3,4,5-tetrahydro-1H-pyrrol-1-yl)phenylethanoic acids amides.

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Kolyamshin, O.A., Mitrasov, Y.N., Danilov, V.A. et al. Synthesis and Some Transformations of 4-(2,5-Dihydro-2,5-dioxo-1H-pyrrrol-1-yl)benzoic and -Phenylacetic Acids Amides. Russ J Gen Chem 93, 240–244 (2023). https://doi.org/10.1134/S1070363223020020

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