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4-(3-Dialkylamino-2,5-dioxopyrrolidin-1-yl)benzoic acid esters

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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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References

  1. Umio, S., JPN Patent no. 30313, 1968; Ref. Zh., Khim., 1970, no. 7N375P.

  2. Umio, S., Kariene, K., and Nakamura, N., JPN Patent no. 21433, 1968; Ref. Zh., Khim., 1969, no. 23N310P.

  3. Ahmed, Q. and Wagner-Jauregg, Th., Swiss Patent no. 583226, 1976; Ref. Zh., Khim., 1977, no. 14O131P.

  4. Khimicheskii entsiklopedicheskii slovar’ (Chemical Encyclopedic Dictionary), Moscow: Sovetskaya Entsiklopediya, 1970, pp. 47, 167, 389.

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Authors and Affiliations

  1. I.N. Ul’yanov Chuvash State University, Moskovskii pr. 15, Cheboksary, 428015, Russia

    O. A. Kolyamshin, V. A. Danilov & N. I. Kol’tsov

Authors
  1. O. A. Kolyamshin
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  2. V. A. Danilov
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  3. N. I. Kol’tsov
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Additional information

Original Russian Text © O.A. Kolyamshin, V.A. Danilov, N.I. Kol’tsov, 2007, published in Zhurnal Organicheskoi Khimii, 2007, Vol. 43, No. 3, pp. 395–397.

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Kolyamshin, O.A., Danilov, V.A. & Kol’tsov, N.I. 4-(3-Dialkylamino-2,5-dioxopyrrolidin-1-yl)benzoic acid esters. Russ J Org Chem 43, 393–396 (2007). https://doi.org/10.1134/S1070428007030104

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  • DOI: https://doi.org/10.1134/S1070428007030104

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