TY - EJOUR
AU - Ramazanzadeh, Forough
AU - Mamaghani, Manouchehr
AU - Fallah-Bagher-Shaidaei, Hossein
AU - Sheykhan, Mehdi
PY - 2024
DA - February
TI - Synthesis of densely functionalized chromenes using a magnetic recoverable ionic liquid as the catalyst
T2 - Iranian Journal of Catalysis
VL - 10
L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/synthesis-of-densely-functionalized-chromenes-using-a-magnetic-recoverable-ionic-liquid-as-the-catalyst/
N2 - In the present study, robust, versatile and straightforward strategy for the diversity-oriented convergent synthesis of a vast range of highly functionalized and biologically effective chromenes is introduced with the reaction of malononitrile, dimedone/cyclohexadione/4-hydroxycoumarin and benzaldehydes in the presence of [γ-Fe2O3@HAp-Si(CH2)3BF4@DMIM] as the catalyst. The structures of all the newly synthesized products were characterized by spectroscopic (FT-IR, 1H NMR, 13C NMR) and elemental analyses. This method benefits from several advantages such as using easily recoverable magnetic nanocatalyst, simple workup, short reaction time and excellent yields. The prepared nanoparticles were fully characterized by various spectroscopic, thermal and magnetic analyses. The catalyst exhibited good reusability feature and no loss of activity was observed even after 8 successive runs.
IS - 4
PB - OICC Press
KW - Benzopyran, Chromene, γ-Fe2O3, HAp, Magnetic nanocatalyst. Ionic liquid 
EN -