Ultrasound-promoted greener synthesis of aryl-14-H-dibenzo[a,j]xanthenes catalyzed by NH4H2PO4/SiO2 in water.
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.
Mahdavinia
Gholam Hossein
GH
Department of Chemistry, Islamic Azad University-Marvdasht Branch, Marvdasht, Iran. hmahdavinia@gmail.com
Rostamizadeh
Shahnaz
S
Amani
Ali Mohammad
AM
Emdadi
Zynab
Z
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*
D010710:Phosphates; D014966:Xanthenes; C011759:dibenzoxanthenes; D014867:Water; D012822:Silicon Dioxide