Construction of a Novel Magnetic Nanocomposite, and its Utility for the Fabrication of ۴,۴′-(Arylmethylene)-bis(۳-methyl-۱-phenyl-۱𝐻-pyrazol-۵-ols)

A newly designed magnetic nanocomposite, based on Fe۳O۴@SiO۲ bonded to an organic component bearing CoCl۳−, was constructed and comprehensively characterized via elemental mapping, EDS, FT-IR, TG, FE-SEM, and XRD techniques. Subsequently, catalytic performance of the magnetic nanocomposite was examined for the construction of ۴,۴′-(arylmethylene)-bis(۳-methyl-۱-phenyl-۱H-pyrazol-۵-ols) through the condensation of ۱ equiv. of aryl aldehydes with ۲ equiv. of ۳-methyl-۱-phenyl-۱H-pyrazol-۵(۴H)-one; it successfully catalyzed the reaction, with several advantages including elimination of solvents during synthesis, short reaction times (۲۰-۳۰ min) combined with high yields (۸۷-۹۶%), facile purification process, a wide applicability across diverse substrates, and robust catalyst recyclability demonstrated by sustained catalytic performance over three times reuses, along with good eco-compatibility.

کلیدواژه ها:

Magnetic nanocomposite ، Solvent-free ، ۳-Methyl-۱-phenyl-۱𝐻-pyrazol-۵(۴𝐻)-one ، ۴ ، ۴′-(Arylmethylene)-bis(۳-methyl-۱-phenyl-۱𝐻-pyrazol-۵-ol)