B. Aghazadeh, M. Nikpassand
Sep 1, 2019
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Carbohydrate research
Abstract
2-Amino glucose ((2S,3R,4S,5S,6R)-2-amino-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol) as a substrate for the synthesis of NiFe2O4@SiO2@amino glucose supply an environmentally friendly procedure for the synthesis of bis(1,2-dihydro-4-hydroxy-2-oxoquinolin-3-yl)methanes through one-pot condensation of aldehyde or pyrazolo carbaldehyde and two equivalents of 4-hydroxyquinolin-2(1H)-ones in aqueous media. Eco-friendliness, high purity of the desired products, short reaction time and easy workup procedure can be mentioned as the other advantages of this method. The structures of the synthesized 4-hydroxy-2(1H)-quinolone compounds were confirmed by 1H, 13C NMR and FTIR spectral data and elemental analyses.