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Nicotinic acid‐supported cobalt ferrite‐catalyzed one‐pot synthesis of substituted chromeno[3,4‐ b ]quinolines
Author(s) -
Foroughi Kaldareh Mahdiye,
Mokhtary Masoud,
Nikpassand Mohammad
Publication year - 2020
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.5469
Subject(s) - chemistry , catalysis , cobalt , ferrite (magnet) , infrared spectroscopy , nuclear chemistry , zinc ferrite , fourier transform infrared spectroscopy , inorganic chemistry , organic chemistry , chemical engineering , zinc , physics , quantum mechanics , engineering
One‐pot synthesis of substituted chromeno[3,4‐ b ]quinoline derivatives was developed by three‐component reaction of aldehydes, dimedone or 1,3‐cyclohexadione, and 4‐aminocoumarin in the presence of nicotinic acid‐supported cobalt ferrite [CoFe 2 O 4 @SiO 2 @Si(CH 2 ) 3 Cl@NA] as a novel magnetic catalyst in chloroform at reflux conditions. Nicotinic acid‐supported cobalt ferrite was characterized via Fourier transform infrared spectroscopy, X‐ray diffraction, thermal gravimetric analysis, scanning electron microscopy, high‐resolution transmission electron microscopy, energy‐dispersive X‐ray spectroscopy, and vibrating sample magnetometry. Moreover, the catalyst could be easily recovered by magnetic separation and recycled up to five times without significant loss of its catalytic activity. The products formed in excellent yields over appropriate reaction times under environmentally friendly conditions. High efficiency and easy isolation of the catalyst from products by simple magnetic attraction are some of the considerable advantages of this procedure.