Journal
RESEARCH ON CHEMICAL INTERMEDIATES
Volume 46, Issue 6, Pages 3145-3164Publisher
SPRINGER
DOI: 10.1007/s11164-020-04142-7
Keywords
1-Amidoalkyl-2-naphthols; 3-Aminopropyltrimethoxysilane; Magnetic nanoparticle-supported 2-(((4-(1-iminoethyl)phenyl)imino)methyl)phenol; Three-component reaction; Solvent-free; Silica-coated Fe3O4
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Two magnetic nanoparticle-supported 2-(((4-(1-iminoethyl)phenyl)imino)methyl)phenols were successfully synthesized, characterized, and applied in the one-pot three-component reaction of substituted benzaldehydes, 2-naphthol, and amides for synthesis of 1-amidoalkyl-2-naphthols. These three-component processes occurred under solvent-free reaction conditions at 80 degrees C. The magnetically recoverable supported Schiff base metal catalysts can be reused several times in the model reaction. The synthesized catalysts are also easily separated from the reaction mixture by applying an external magnet. This procedure offers the advantages of simple, operational procedure as well as no use of hazardous organic solvents.
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