A novel pyridine base modified core-shell (γ-Fe2O3@Hap (Hap:
Hydroxyapatite)) inorganic-organic hybrid magnetic nanocatalyst has been introduced.
The catalyst was fully characterized by spectroscopic analyses (FT-IR, FESEM, EDX,
XRD) and its efficiency evaluated as a basic catalyst in one-pot multicomponent reaction
of aryl aldehydes, rhodanine and piperidine under ultrasonic irradiation to obtain thiazole
derivatives. This green, fast and straightforward protocol produced the products in short
reaction times (14-40 min) and high to excellent yields (75-95%).
Keywords: γ-Fe2O3@HAp, thiazole, rhodanine, thiazolone, ultrasonic irradiation, multicomponent reaction.
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