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<p>Catalysis plays a crucial role in promoting efficient methodologies for organic synthesis. In this study, a novel heterogeneous catalyst AMP (2-amino-2-methyl-1-propanol) modified graphitic carbon nitride sulphonic acid (AMP@CNSA) was developed and applied for the green synthesis of xanthene-1,8-dione derivatives. The catalyst was synthesized through a simple procedure and was thoroughly characterized using FTIR, XRD, SEM–EDX, BET, and TGA, confirming its successful synthesis and excellent thermal stability and reusability over six consecutive cycles with minimal loss of activity. A series of fourteen xanthene-1,8-dione derivatives were synthesized under optimized conditions; 15&#xa0;mg catalyst in water at reflux, in excellent yields (86–99%) within short reaction times (10–45&#xa0;min). Notably, seven of these derivatives are reported as new, further underscoring the significance of this work. The method demonstrated excellent green chemistry metrics and was successfully scaled up to gram-scale synthesis, highlighting its industrial relevance.</p> Graphical Abstract <p></p>

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Material to synthetic efficiency: Novel AMP modified g-C3N4·SO3H catalyst for the green and scalable synthesis of xanthene-1,8-diones

  • 期刊论文

  • 发表日期：

    2026年2月26日

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  • Shivani Soni,
  • Sunita Teli,
  • Shikha Agarwal

摘要

Catalysis plays a crucial role in promoting efficient methodologies for organic synthesis. In this study, a novel heterogeneous catalyst AMP (2-amino-2-methyl-1-propanol) modified graphitic carbon nitride sulphonic acid (AMP@CNSA) was developed and applied for the green synthesis of xanthene-1,8-dione derivatives. The catalyst was synthesized through a simple procedure and was thoroughly characterized using FTIR, XRD, SEM–EDX, BET, and TGA, confirming its successful synthesis and excellent thermal stability and reusability over six consecutive cycles with minimal loss of activity. A series of fourteen xanthene-1,8-dione derivatives were synthesized under optimized conditions; 15 mg catalyst in water at reflux, in excellent yields (86–99%) within short reaction times (10–45 min). Notably, seven of these derivatives are reported as new, further underscoring the significance of this work. The method demonstrated excellent green chemistry metrics and was successfully scaled up to gram-scale synthesis, highlighting its industrial relevance.

Graphical Abstract