@article { author = {Mohammadi Ziarani, Ghodsi and Badiei, Alireza and Azizi, Masoomeh and Zarabadi, Peshman}, title = {Synthesis of 3,4-Dihydropyrano[c]Chromene Derivatives Using Sulfonic Acid Functionalized Silica (SiO2PrSO3H)}, journal = {Iranian Journal of Chemistry and Chemical Engineering}, volume = {30}, number = {2}, pages = {59-65}, year = {2011}, publisher = {Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR}, issn = {1021-9986}, eissn = {}, doi = {10.30492/ijcce.2011.6286}, abstract = {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.}, keywords = {3,4-Dihydropyrano[c]chromenes,Sulfonic acid functionalized silica (SiO2-Pr-SO3H),4-Hydroxycoumarin,Malononitrile,Acid catalyst}, url = {https://ijcce.ac.ir/article_6286.html}, eprint = {https://ijcce.ac.ir/article_6286_e94b51d65875a6242b6d1e20141ce762.pdf} }