Sonochemical syntheses of xanthene derivatives using zeolite-supported transition metal catalysts in aqueous media |
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| Authors: | Kazem D Safa Elham Taheri Maryam Allahvirdinesbat Aligholi Niaei |
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| Institution: | 1.Organosilicon Research Laboratory, Faculty of Chemistry,University of Tabriz,Tabriz,Iran;2.Department of Applied Chemistry and Chemical Engineering, Faculty of Chemistry,University of Tabriz,Tabriz,Iran |
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| Abstract: | An efficient green method for the syntheses of biologically active xanthene derivatives by use of zeolite-supported transition metal catalysts is described. A Fe-Cu/ZSM-5 heterogeneous catalyst has the highest activity in the one-pot syntheses with a wide range of aldehydes and cyclic 1,3-diketones, under ultrasonic irradiation in water at ambient temperatures. The three-component condensation in the presence of supported metal catalysts is operationally simple, requires no expensive or toxic reagents, and gives high yields in short reaction times. |
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