OICC Press Iranian Journal of Catalysis 2345-4865 2 2 2024 02 03 A new, green and recyclable poly(4-vinylpyridine)-supported copper iodide nanoparticles catalyst for the synthesis of aryl-14H-dibenzo [a-o] xanthenes EN Jalal Albadi Department of Chemistry, Faculty of Science, Shahrekord University, Shahrekord, Iran. Nasir Iravani Department of Chemistry, Faculty of Science, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran. Moloud Khoshakhlagh Department of Chemistry, Gachsaran Branch, Islamic Azad University, Gachsaran, Iran. Journal Article 2024 02 03 Poly(4-vinylpyridine)-supported copper iodide nanoparticles is reported as a new, green and recyclable catalyst for the synthesis of aryl-14H-dibenzo [a-o] xanthenes under solvent-free conditions. This catalyst can be recovered by simple filtration and recycled up to 8 consecutive runs without any loss of their efficiency.