سنتز مشتقات هگزا هيدرو-1H-زانتن-1,8(2H)-دي‌اون‌ها با استفاده كاتاليست هيوميك اسيد سولفونه شده

Xanthenes an‎d their derivatives are among the most important heterocyclic compounds, with broad applications in pharmaceutical, biological, an‎d industrial sciences. Therefore, in this project, a green catalyst, sulfonated humic acid, was synthesized. This catalyst was characterized an‎d confirmed using various methods, including XRD, TGA, UV-Vis spectroscopy, FT-IR, SEM, BET, an‎d zeta potential analysis. In the synthesis of Xanthene derivatives, the performance, capability, an‎d functionality of the catalyst were eva‎luated using a pseudo-three-component reaction involving 2 moles of dimedone an‎d 1 mole of various benzaldehydes at 110°C for 20 minutes. The product yields ranged from 88% to 100%. The catalyst facilitated the reaction, increased the yield, shortened the reaction time, an‎d eliminated the need for harmful organic solvents, thereby establishing an efficient synthetic route aligned with green chemistry principles.

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