Premium
Synthesis of 1‐amidoalkyl‐2‐naphthol derivatives using a magnetic nano‐Fe 3 O 4 @SiO 2 @Hexamethylenetetramine‐supported ionic liquid as a catalyst under solvent‐free conditions
Author(s) -
Bahrami Somayeh,
Jamehbozorgi Saeed,
Moradi Shahram,
Ebrahimi Sattar
Publication year - 2020
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201900234
Subject(s) - hexamethylenetetramine , chemistry , thermogravimetric analysis , catalysis , nano , ionic liquid , heterogeneous catalysis , scanning electron microscope , condensation reaction , chemical engineering , solvent , nuclear chemistry , organic chemistry , materials science , composite material , engineering
Hexamethylenetetramine‐functionalized silica‐coated nano‐Fe 3 O 4 particles (MNPs@Hexamethylenetetramine) were prepared as a reusable heterogeneous catalyst using a facile process. The catalyst was synthesized and characterized using infrared, X‐ray diffraction, scanning electron microscopy, thermogravimetric analysis, and vibrating sample magnetometer. This magnetic nanocatalyst was employed as an efficient, reusable, and environmentally benign heterogeneous catalyst for the synthesis of amidoalkylnaphthol derivatives from a one‐pot three‐component condensation reaction of beta‐naphthol, aldehydes, and amides in good to excellent yields, Moreover, this catalyst can be easily recovered by using a magnetic field and directly reused for at least seven runs without sign ificant loss of its activity.