Iranian Journal of Catalysis (IJC) A novel nano perfluoro ionic liquid as an efficient catalyst in the synthesis of chromenes under mild and solvent-free conditions Volume 9 (2019) Issue 1, March 2019 2024 02 25 A novel nano perfluoro ionic liquid as an efficient catalyst in the synthesis of chromenes under mild and solvent-free conditions EN Javad Afsar Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838683, Iran. Ardeshir Khazaei Faculty of Chemistry, University of Bu-Ali Sina, 65178, Hamedan, Iran. Mohammad Ali Zolfigol Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838683, Iran. Journal Article 2024 02 25 1-Methyl-1H-imidazol-3-ium 2,3,4,5,6-pentafluorophenolate [mim]C6F5O as a novel nano ionic liquid was designed, synthesized and characterized by using various techniques such as Fourier transform spectroscopy infrared (FT-IR), nuclear magnetic resonance (NMR), x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive x-ray spectroscopy (EDX), thermal gravimetric analysis (TGA), derivative thermal gravimetric (DTG) and elemental analysis (CHN). The described nano perfluoro ionic liquid was used as an efficient catalyst in the synthesis of 2-amino-4,5-dihydropyrano[3,2-c]chromene, 3-amino-1H-benzo[f]chromene and 2-amino-4H-chromene derivatives under mild and solvent-free conditions. Short reaction times, good yields of products, easy work-up are the major advantages of this work.