4-(3-Dialkylamino-2,5-dioxopyrrolidin-1-yl)benzoic acid esters |
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| Authors: | O. A. Kolyamshin V. A. Danilov N. I. Kol’tsov |
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| Affiliation: | (1) I.N. Ul’yanov Chuvash State University, Moskovskii pr. 15, Cheboksary, 428015, Russia |
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| Abstract: | Reactions of alkyl 4-aminobenzoates with maleic anhydride give the corresponding alkyl 4-(2,5-dioxo-2,5-dihydro-1H-pyrrol-1-yl)benzoates, and the latter are converted into 4-(3-dialkylamino-2,5-dioxo-2,3,4,5-tetrahydro-1H-pyrrol-1-yl)benzoates by treatment with secondary amines. |
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