TY - EJOUR AU - Hemmat, Kaveh AU - Nasseri, Mohammad Ali AU - Allahresani, Ali PY - 2024 DA - February TI - Synthesis, characterization and immobilization of cobalt (III) salen complex on CoFe2O4@SiO2 nanoparticle and their application in the synthesis of di-indolyloxindole T2 - Iranian Journal of Catalysis VL - 9 L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/synthesis-characterization-and-immobilization-of-cobalt-iii-salen-complex-on-cofe2o4sio2-nanoparticle-and-their-application-in-the-synthesis-of-di-indolyloxindole/ N2 - The preparation, characterization, and immobilization of cobalt (III) salen complex on CoFe2O4@SiO2 nanoparticle (CoFe2O4@SiO2@ Co(III) salen complex) are described. Co(III) salen complex loaded on ferrite cobalt-silica nanoparticle is characterized by TEM, SEM-EDX, VSM and FT-IR analyses. The efficiency of CoFe2O4@SiO2@Co(III) salen complex as a catalyst was carried out in the 3-indolylation reaction of indole with isatin derivatives in the water at 80 . Di-indolyloxindole was achieved with excellent yield (95%), using indole, isatin, and CoFe2O4@SiO2@Co(III) salen complex within 2 h in water as solvent at 80 . Moreover, the recoverability and reusability of CoFe2O4@SiO2@Co(III) salen complex were investigated. IS - 4 PB - OICC Press KW - Multicomponent, Isatin, Co(III) salen complex, Di-indolyloxindole, indole, Cobalt ferrite EN -