%0 Journal Article %T Synthesis of 3,4-Dihydropyrano[c]Chromene Derivatives Using Sulfonic Acid Functionalized Silica (SiO2PrSO3H) %J Iranian Journal of Chemistry and Chemical Engineering %I Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR %Z 1021-9986 %A Mohammadi Ziarani, Ghodsi %A Badiei, Alireza %A Azizi, Masoomeh %A Zarabadi, Peshman %D 2011 %\ 06/01/2011 %V 30 %N 2 %P 59-65 %! Synthesis of 3,4-Dihydropyrano[c]Chromene Derivatives Using Sulfonic Acid Functionalized Silica (SiO2PrSO3H) %K 3 %K 4-Dihydropyrano[c]chromenes %K Sulfonic acid functionalized silica (SiO2-Pr-SO3H) %K 4-Hydroxycoumarin %K Malononitrile %K Acid catalyst %R 10.30492/ijcce.2011.6286 %X 3,4-ِDihydropyrano[c]chromene derivatives were synthesized using sulfonic acid functionalized silica (SiO2-Pr-SO3H) as a highly efficient heterogenous solid acid catalyst via one-pot three-component condensation of aromatic aldehydes with malononitrile and 4-hydroxycoumarin in excellent yields. %U https://ijcce.ac.ir/article_6286_e94b51d65875a6242b6d1e20141ce762.pdf