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Fe 3 O 4 @vitamin B 1 as a sustainable superparamagnetic heterogeneous nanocatalyst promoting green synthesis of trisubstituted 1,3‐thiazole derivatives
Author(s) -
Shaterian Hamid Reza,
Molaei Parisa
Publication year - 2019
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.4964
Subject(s) - superparamagnetism , chemistry , catalysis , thermogravimetric analysis , green chemistry , fourier transform infrared spectroscopy , nuclear chemistry , solvent , heterogeneous catalysis , chemical engineering , organic chemistry , reaction mechanism , magnetization , physics , quantum mechanics , magnetic field , engineering
Fe 3 O 4 @vitamin B 1 was designed and prepared as an inexpensive and efficient heterogeneous nanocatalyst for the synthesis of new 1,3‐thiazol derivatives. The structure of the nanomagnetic catalyst was comprehensively characterized using Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, energy‐dispersive X‐ray spectroscopy, vibrating sample magnetometry and thermogravimetric analysis. The three‐component, one‐pot condensation of arylglyoxal monohydrate, cyclic 1,3‐dicarbonyls and thioamides in water as a green solvent was applied for the preparation of 1,3‐thiazol derivatives. Simple preparation of the catalyst from commercially available materials, high catalytic activity, simple operation, short reaction times, high yields and use of green solvent are some advantages of this protocol. The superparamagnetic nanocatalyst is magnetically separable and retains its stability after recycling for at least five consecutive runs without detectable activity loss.