title: Ultrasound-promoted greener synthesis of aryl-14-H-dibenzo[a,j]xanthenes catalyzed by NH4H2PO4/SiO2 in water.
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-dibenzo[a,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.
authors.affiliation: Department of Chemistry, Islamic Azad University-Marvdasht Branch, Marvdasht, Iran. hmahdavinia@gmail.com
authors.forename: Gholam Hossein
authors.initials: GH
authors.lastname: Mahdavinia
authors.forename: Shahnaz
authors.initials: S
authors.lastname: Rostamizadeh
authors.forename: Ali Mohammad
authors.initials: AM
authors.lastname: Amani
authors.forename: Zynab
authors.initials: Z
authors.lastname: Emdadi
mesh_terms: D002384:Catalysis; D055772:Green Chemistry Technology; D010710:Phosphates / Q000737:chemistry*; D012822:Silicon Dioxide / Q000737:chemistry*; D014465:Ultrasonics; D014867:Water / Q000737:chemistry*; D014966:Xanthenes / Q000138:chemical synthesis*
chemical_list: D010710:Phosphates; D014966:Xanthenes; C011759:dibenzoxanthenes; D014867:Water; D012822:Silicon Dioxide