%0 Journal Article %T Brønsted Acidic Phosphonium Based Ionic Liquid Functionalized SBA-15 [HO3S-PhospIL@SBA-15]: Green, Recyclable, and Efficient Catalyst for the Synthesis of Pyrano[3,2-c]Chromenone Derivatives %J Iranian Journal of Chemistry and Chemical Engineering %I Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR %Z 1021-9986 %A Saeedi, Mina %A Jeiroudi, Mohammad %A Ma’mani, Leila %A Mahdavi, Mohammad %A Alipour, Eskandar %A Shafiee, Abbas %A Foroumadi, Ali Reza %D 2015 %\ 12/01/2015 %V 34 %N 4 %P 39-45 %! Brønsted Acidic Phosphonium Based Ionic Liquid Functionalized SBA-15 [HO3S-PhospIL@SBA-15]: Green, Recyclable, and Efficient Catalyst for the Synthesis of Pyrano[3,2-c]Chromenone Derivatives %K Chalcones %K Functionalized SBA-15 %K 4-Hydroxycoumarin %K Pyrano[3 %K 2-c]chromenones %K Supported ionic liquid %R 10.30492/ijcce.2015.15443 %X The surface of SBA-15 was modified by diphenylphosphine; then, it was treated with butane sultone and sulfuric acid to obtain Brønsted acid HO3S-phosphonium based ionic liquid functionalized SBA-15 with HSO4- as a counteranion. It efficiently catalyzed synthesis of pyrano[3,2-c]chromenone derivatives through the reaction of 4-hydroxycoumarin and chalcones at 60 °C in water/ethanol. Good yields, mild reaction conditions, and user-friendly procedure are advantages of this method. Also, the catalyst could be easily separated and reused five times without significant reduction of activity.   %U https://ijcce.ac.ir/article_15443_0b39eb6ecfcbf67aff92b98bcdfb825d.pdf