%0 Journal Article %T Fe3O4@APTES@isatin-SO3H as heterogeneous and efficient catalyst for the synthesis of quinoxaline derivatives %J Eurasian Chemical Communications %I Sami Publishing Company (SPC) %Z 2717-0535 %A Sajjadifar, Sami %A Amini, Issa %A Mansouri, Ghobad %A Alimohammadi, Sattar %D 2020 %\ 05/01/2020 %V 2 %N 5 %P 626-633 %! Fe3O4@APTES@isatin-SO3H as heterogeneous and efficient catalyst for the synthesis of quinoxaline derivatives %K Fe3O4@APTES@isatin-SO3H %K quinoxaline, O-phenylen diamines %K 1, 2-dicarbonyl %K nanocatalyst %R 10.33945/SAMI/ECC.2020.5.9 %X In this work, an efficient and new Fe3O4@APTES@isatin-SO3Hwas synthesized through immobilization of isatin sulfonic acid on silica modified Fe3O4 nanoparticles. The synthesizedFe3O4@APTES@isatin-SO3Hmagnetic nanoparticles (MNPs) were characterized using the energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), vibrating sample magnetometer (VSM), X-ray diffraction (XRD), and thermogravimetric(TGA) analysis. The Fe3O4@APTES@isatin-SO3HMNPs performed efficient catalytic activity as a magnetically recyclable heterogeneous catalyst for one-pot, condensation reaction of 1,2-dicarbonyl compounds and o-phenylen diamines in ethanol at room temperature to afford quinoxaline derivatives. %U https://www.echemcom.com/article_104092_f079a004c68f8be38bc0affe137b196c.pdf