List of Articles 4-dione Open Access Article Abstract Page Full-Text 1 - Efficient synthesis of benzo[a] pyrano[3,2-c] phenazine in solvent-free conditions using butyl-3-methylimidazolium hexafluorophosphate ionic liquid catalyst Hossein Naeimi Mahsa Khorasani Open Access Article Abstract Page Full-Text 2 - Et3N as a catalyst for the synthesis of indeno[1,2-b]chromene derivatives via three-component condensation reaction Ali Sadeghi Ali Hossein Rezayan Ali Farajtabar Open Access Article Abstract Page Full-Text 3 - Facile one-pot synthesis of pyrimido[4,5-d]pyrimidine-2,4-diones in Ionic Liquid and study of their antibacterial activities Ayoob Bazgir Seyyedeh Cobra Azimi Open Access Article Abstract Page Full-Text 4 - Cellulose sulfuric acid: an efficient biopolymer-based catalyst for the synthesis of 5H-dibenzo[b,i]xanthene-tetraones and spiro[dibenzo[b,i]xanthene-13,3'-indoline]-pentaones under solvent free conditions Seyyedeh Cobra Azimi Hassan Kefayati