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<p>A method for the synthesis of alkyl 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylates <i>E</i>-hydrazones by interaction of alkyl 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylates with substituted hydrazines is proposed. <i>E</i>-<i>Bis</i>-hydrazones or furocinnolinone was obtained by the reaction of alkyl 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylates with hydrazine hydrate depending on the conditions. <i>Bis</i>-hydrazones with minimal relative energy are characterized by quantum chemical calculations.</p> Graphical abstract <p></p>

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The synthesis of hydrazones of alkyl 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylates and furocinnolin-3-one

  • 期刊论文

  • 发表日期：

    2025年2月27日

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  • Kirill A. Gomonov,
  • Vasilii V. Pelipko,
  • Igor A. Litvinov,
  • Ruslan I. Baichurin,
  • Anastasiya A. Kuznetsova,
  • Yana A. Vereshchagina,
  • Sergey V. Makarenko

摘要

A method for the synthesis of alkyl 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylates E-hydrazones by interaction of alkyl 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylates with substituted hydrazines is proposed. E-Bis-hydrazones or furocinnolinone was obtained by the reaction of alkyl 4-oxo-4,5,6,7-tetrahydrobenzofuran-3-carboxylates with hydrazine hydrate depending on the conditions. Bis-hydrazones with minimal relative energy are characterized by quantum chemical calculations.

Graphical abstract