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Abstract <p><i>N</i>,<i>N</i>,<i>N</i>',<i>N</i>'-Tetramethyl-<i>N</i>,<i>N</i>'-bis(sulfo)biphenyl-4,4'-diaminium mesylate ([TMBSPD][OMs]<sub>2</sub>) was synthesized as a recyclable ionic liquid and characterized by various techniques. This ionic liquid was efficiently applied as a multifunctional promoter for the three-component synthesis of 2-amino-3-cyano-4<i>H</i>-pyrans. The 2-amino-3-cyano-4<i>H</i>-pyrans were prepared not only in high to excellent yields but also no toxic solvent or catalyst was used. [TMBSPD][OMs]<sub>2</sub> ionic liquid was also recovered and reused four times without the considerable decreasing in its activity. Also, some new derivatives of the 2-amino-3-cyano-4<i>H</i>-pyrans were synthesized by this method.</p>

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A Novel Basic and Acidic Ionic Liquid as a Highly Effectual and Dual-Functional Catalyst for the Green Synthesis of 2-Amino-3-cyano-4H-pyrans

  • 期刊论文

  • 发表日期：

    2025年8月26日

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  • Shahrzad Kashanaki,
  • Farahnaz K. Behbahani

摘要

Abstract

N,N,N',N'-Tetramethyl-N,N'-bis(sulfo)biphenyl-4,4'-diaminium mesylate ([TMBSPD][OMs]2) was synthesized as a recyclable ionic liquid and characterized by various techniques. This ionic liquid was efficiently applied as a multifunctional promoter for the three-component synthesis of 2-amino-3-cyano-4H-pyrans. The 2-amino-3-cyano-4H-pyrans were prepared not only in high to excellent yields but also no toxic solvent or catalyst was used. [TMBSPD][OMs]2 ionic liquid was also recovered and reused four times without the considerable decreasing in its activity. Also, some new derivatives of the 2-amino-3-cyano-4H-pyrans were synthesized by this method.