مقالات رزومه سید علی پورموسوی

In this study, a magnetic nanocomposite based on poly (styrene-co-maleic anhydride) (Fe3O4 @ PSMASA) was prepared in three steps. In the first step, poly (styrene-co-maleic anhydride) was prepared from the radical polymerization reaction of styrene and maleic anhydride monomers. In the second step, the iron oxide magnetic nanoparticles prepared by co-precipitation method were functionalized using 3-aminopropyltriethoxycylan (APTES). In the third step, the maleic anhydride ring in the copolymer was modified with sulfanilic acid and amine-activated magnetic iron nanoparticles to form carboxylic acid and sulfonic acid groups on poly (styrene-co-maleic anhydride). The catalytic activity of the resulted Fe3O4 @ PSMASA was investigated in the three-component reaction of isatoic anhydride, amines and aldehydes in ethanol as solvent. This method led to the synthesis of various derivatives of 3,2-dihydroquinazoline-4 (1H) in high yields. The catalyst can be recovered and reused in the reaction without significant loss catalytic activity. The other advantages of this method include high efficiencies, mild reaction conditions, good performance and environmental friendliness.

In this project, crosslinked Styrene-Co-Maleic anhydride Polymer Catalyst modified with NiSO4 hexahydrate, as an efficient heterogeneous polymer-based nanocatalyst was synthesized in three steps. First, Styrene-Co-Maleic anhydride polymer was synthesized by radical polymerization of styrene in maleic anhydride, then the resulted copolymer was crosslinked with 1,3-phenylenediamine and finally the crosslinked copolymer was modified with NiSO4. This polymer-based nanocatalyst was investigated and identified using Fourier-transform infrared spectroscopy (FT-IR), Energy Dispersive X-Ray (EDX) (EDX), X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM). In order to investigate the catalytic properties of CPSMA-Ni, the synthesis of various types of 2-amino-4H-chromane derivatives was investigated using the reaction of aldehyde derivatives with malononitrile in the presence of dimedone, resorcinol or naphthols. 2-Amino-4H-Cromans were synthesized with good to excellent efficiency (85%-96%) under mild conditions. This heterogeneous polymeric catalyst has a good performance in the synthesis of chromium derivatives. This catalyst can be recycled without pre-activation and reloaded up to 5 consecutive runs without significant decrease in its efficiency.