[Fe₃O₄@SiO₂@Si-pr-NMe₂-et-NHMe₂][FeCl₄][HSO₄] as a Novel and Effectual Catalyst for the Fabrication of ۱۴-Aryl-۱۴H-dibenzo[a,j]xanthenes

A new magnetic nanomaterial namely [Fe۳O۴@SiO۲@Si-pr-NMe۲-et-NHMe۲][FeCl۴][HSO۴] (FSPNFH) was constructed, and characterized using EDS, elemental mapping, FT-IR, FE-SEM, VSM, XRD and TG analyses. Thereupon, FSPNFH was exploited as a magnetically recoverable catalyst for the fabrication of ۱۴-aryl-۱۴H-dibenzo[a,j]xanthenes via the condensation of aryl aldehydes (۱ eq.) with ۲-naphthol (۲ eq.) under solvent-free conditions. The xanthene derivatives were obtained in high yields (۸۹-۹۷%) and short times (۱۵-۳۰ min). FSPNFH was reused for two times without significant diminishing in its activity.

کلیدواژه ها:

[Fe₃O₄@SiO₂@Si-pr-NMe₂-et-NHMe₂][FeCl₄][HSO₄] ، Solvent-free ، Magnetic nanomaterial ، nanocatalyst ، ۱۴-aryl-۱۴H-dibenzo[a ، j]xanthene