Synthesis and characterization of highly stable superparamagnetic CoFe2O4 nanoparticles as a catalyst for novel synthesis of thiazolo[4,5-b]quinolin-9-one derivatives in aqueous medium

• Published in: Journal of molecular catalysis. A, Chemical Vol. 404-405; pp. 148 - 155
• Main Authors: Abd El Aleem Ali Ali El-Remaily, Mahmoud, Hamad, H.A.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.08.2015
• Subjects: [1,3] Thiazolo[4,5-b]quinolin-9-one; Aqueous medium; CoFe2O4MNPs; Heterogeneous catalysis; Nanocatalyst; Recyclibity non-chromatographic methods; Superparamagnetic materials; Heterogeneous catalysis; Nanocatalyst; Superparamagnetic materials; Aqueous medium; CoFe2O4MNPs; Recyclibity non-chromatographic methods; [1,3] Thiazolo[4,5-b]quinolin-9-one
• ISSN: 1381-1169; 1873-314X
• DOI: 10.1016/j.molcata.2015.04.023

[Display omitted] •Synthesis and characterization of highly stable superparamagnetic CoFe2O4 NPs.•CoFe2O4 MNPs were prepared using a sonochemical in aqueous medium.•CoFe2O4 MNPs an environmentally benign for synthesis of thiazolo-quinolin-9-one.•The products easy work-up and the purification by non-chromatographic methods.•This protocol avoiding hazardous organic solvents and toxic catalysts, reusability. A highly stable CoFe2O4 magnetic nanoparticles (MNPs) has been successfully prepared using a combined sonochemical and co-precipitation technique in aqueous medium without any surfactant or organic capping agent. The prepared (MNPs) were characterized with XRD, SEM, EDX, TEM, FT-IR and VSM. These nanoparticles form stable dispersions in aqueous or alcoholic medium. MNPs has been an efficient and environmentally benign nanocatalyst for the one-pot multicomponent synthesis of tetrahydrobenzo[h][1,3] thiazolo[4,5-b]quinolin-9-one 4a-p. The synthesized compounds easy work-up and purification of products by non-chromatographic methods. Highly yield of the corresponding products were obtained within a very short time in presence of just 6mol% of the catalyst.