@article{Hemmat_Nasseri_Allahresani_2024, title={Synthesis, characterization and immobilization of cobalt (III) salen complex on CoFe2O4@SiO2 nanoparticle and their application in the synthesis of di-indolyloxindole}, volume={9}, url={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/}, abstractNote={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.}, number={4}, journal={Iranian Journal of Catalysis}, publisher={OICC Press}, author={Hemmat, Kaveh and Nasseri, Mohammad Ali and Allahresani, Ali}, year={2024}, month={Feb.}, keywords={indole, Cobalt ferrite, Multicomponent, Isatin, Co(III) salen complex, Di-indolyloxindole} }