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Abstract <p>Nucleophilic addition of urea and thiourea to 1-antipyryl-1<i>H</i>-pyrrole-2,3-diones afforded 1-anti­pyryl-4-aroyl-3-hydroxy-5-methoxycarbonyl-5-ureido-1<i>H</i>-pyrrol-2-ones and 1-antipyryl-4-aroyl-3-hydroxy-5-methoxycarbonyl-5-thioureido-1<i>H</i>-pyrrol-2-ones. 1-Antipyryl-4-aroyl-3-hydroxy-5-methoxycarbonyl-5-ureido-1<i>H</i>-pyrrol-2-ones underwent intramolecular spiro heterocyclization by the action of sodium methoxide.</p>

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Reaction of 1-Antipyryl-4-aroyl-5-methoxycarbonyl-1H-pyrrole-2,3-diones with Urea and Thiourea

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  • 出版模式：

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  • 发表日期：

    2025年10月1日

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  • V. A. Lyadov,
  • D. E. Makrushin,
  • E. S. Denislamova,
  • A. N. Maslivets

摘要

Abstract

Nucleophilic addition of urea and thiourea to 1-antipyryl-1H-pyrrole-2,3-diones afforded 1-anti­pyryl-4-aroyl-3-hydroxy-5-methoxycarbonyl-5-ureido-1H-pyrrol-2-ones and 1-antipyryl-4-aroyl-3-hydroxy-5-methoxycarbonyl-5-thioureido-1H-pyrrol-2-ones. 1-Antipyryl-4-aroyl-3-hydroxy-5-methoxycarbonyl-5-ureido-1H-pyrrol-2-ones underwent intramolecular spiro heterocyclization by the action of sodium methoxide.