Construction of a Novel Magnetic Nanomaterial, and its Utility as an Effectual Catalyst for the Fabrication of 1, 8-Dioxo-Octahydroxanthenes

At first, construction and characterization of a novel magnetic nanomaterial titled N1-(Si-pr)-(N1,N1,N4,N4-tetramethylbenzene-1,4-diaminium) chloride dihydrogen phosphate grafted on Fe3O4@SiO2 (STCDFS) have been described. The characterization has been accomplished by EDX, elemental mapping, FE-SEM, FT-IR, XRD, and VSM analyses. In continue, effectual and quick fabrication of 1,8-dioxo-octahydroxanthenes form aryl aldehydes and dimedone using STCDFS in solvent-free conditions has been reported. The xanthenes were acquired in 92-98% in 5-10 min. Moreover, the catalyst was reusable for one time without remarkable decrement in its performance.