Ultrasound-promoted greener synthesis of aryl-14-H-dibenzo[a,j]xanthenes catalyzed by NH4H2PO4/SiO2 in water |
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| Authors: | Mahdavinia Gholam Hossein Rostamizadeh Shahnaz Amani Ali Mohammad Emdadi Zynab |
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| Institution: | Department of Chemistry, Islamic Azad University-Marvdasht Branch, Marvdasht, Iran. hmahdavinia@gmail.com |
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| Abstract: | Silica supported ammonium dihydrogen phosphate (NH(4)H(2)PO(4)/SiO(2)) is found to be a recyclable heterogeneous catalyst for a rapid and efficient synthesis of various aryl-14-H-dibenzoa,j]xanthenes with excellent yields using ultrasonic irradiation. The present methodology offers several advantages such as excellent yields, simple procedure, short reaction times and milder conditions. |
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