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Abstract <p>Herein we report a convenient and green synthesis of a new class of phosphonopyrans—2-amino-3-cyano-6-phosphonoethyl-4<i>H</i>-pyrans—through the K<sub>2</sub>CO<sub>3</sub>-catalyzed reaction of malononitrile with γ-keto-δ-alkenylphosphine oxides. The reaction proceeds under operationally simple and mild conditions, employs a low-cost and an environmentally benign catalyst and ethanol as a green solvent.</p>

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Efficient and Green Synthesis of Novel 2-Amino-3-cyano-6-(phosphonoethyl)-4H-pyrans

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • I. Lamouchi,
  • S. Touil

摘要

Abstract

Herein we report a convenient and green synthesis of a new class of phosphonopyrans—2-amino-3-cyano-6-phosphonoethyl-4H-pyrans—through the K2CO3-catalyzed reaction of malononitrile with γ-keto-δ-alkenylphosphine oxides. The reaction proceeds under operationally simple and mild conditions, employs a low-cost and an environmentally benign catalyst and ethanol as a green solvent.