TY - EJOUR
AU - Nezhad, Eshagh Rezaee
AU - Karimian, Saaid
PY - 2024
DA - February
TI - Synthesis of benzimidazole derivatives using Ni2+ supported on hydroxyapatite-core@shell γ-Fe2O3 nanoparticles both under solvent and solvent-free conditions
T2 - Iranian Journal of Catalysis
VL - 5
L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/synthesis-of-benzimidazole-derivatives-using-ni2-supported-on-hydroxyapatite-coreshell-%ce%b3-fe2o3-nanoparticles-both-under-solvent-and-solvent-free-conditions/
N2 - Ni2+ supported on hydroxyapatite-core@shell γ-Fe2O3 nanoparticles (γ-Fe2O3@HAp-Ni2+) was found to be a useful catalyst for the synthesis of benzimidazole derivatives from o-phenylenediamine and aldehydes under solvent and solvent-free conditions at 80 °C. This reaction affords the corresponding benzimidazole derivatives compared with the classical reactions this method consistently gives a high yield, easy magnetic separation, a short reaction time, simple workup and recyclable property of the catalyst. In this way, the catalyst was readily recovered using an external magnet and could be reused in five consecutive runs without significant loss of reactivity. The mean size and the surface morphology of the nanocatalyst were characterized by TEM, SEM, VSM, XRD and FTIR techniques.
IS - 4
PB - OICC Press
KW - o-Phenylenediamine, Ni2+ supported, γ-Fe2O3 Nanoparticles, Benzimidazole 
EN -