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Abstract <p>The carbodiimides obtained from the reaction of ethyl 7-hydroxy-4-phenyl-2-[(triphenyl-λ<sup>5</sup>-phosphanylidene)amino]-4<i>H</i>-chromene-3-carboxylate with phenyl isocyanate reacted with different alkyl- and arylamines in the presence of sodium ethoxide to afford a series of chromeno[2,3-<i>d</i>]pyrimidin-4-one derivatives in good yields.</p>

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Tandem Aza-Wittig/Heterocumulene-Mediated Annulation: Synthesis of Chromeno[2,3-d]pyrimidin-4-ones

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • Mohamed Hassan,
  • M. A. Barsy,
  • E. A. El Rady,
  • M. A. Khalil,
  • F. M. Abd El Latif,
  • H. A. El Damrany Hussein

摘要

Abstract

The carbodiimides obtained from the reaction of ethyl 7-hydroxy-4-phenyl-2-[(triphenyl-λ5-phosphanylidene)amino]-4H-chromene-3-carboxylate with phenyl isocyanate reacted with different alkyl- and arylamines in the presence of sodium ethoxide to afford a series of chromeno[2,3-d]pyrimidin-4-one derivatives in good yields.