@article { author = {Naeimi, Hossein and Lahouti, Sepideh}, title = {MnFe2O4 MNPs Anchored Chitosan-Bu-SO3H as a Recyclable Nanocatalyst for Sonochemical One Pot Heterocyclization of Indandione with Aniline and Acenaphthoquinone in Aqueous Media}, journal = {Organic Chemistry Research}, volume = {6}, number = {1}, pages = {54-68}, year = {2020}, publisher = {Iranian Chemical Society}, issn = {2383-242X}, eissn = {2383-242X}, doi = {10.22036/org.chem.2019.158492.1181}, abstract = {In this research, the successful synthesis of spiro[acenaphthylene-1,9'-acridine] triones using 1,3-indandione, aniline and acenaphthoquinone in the presence of magnetic MnFe2O4@CS-Bu-SO3H NPs catalyst under ultrasonic irradiation in water is described. The catalyst was fully characterized by scanning electronic microscopy (SEM), vibrating sample magnetometer (VSM), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), energy dispersive X-ray (EDX) and furrier transfer- infrared (FT-IR) spectroscopy. This method offers several advantages such as easy work-up, excellent yields, short reaction times, using of ultrasonic method, recoverability of the catalyst and little catalyst loading.}, keywords = {Ultrasound,Spiroheterocycles,Magnetic nanoparticles,MnFe2O4@CS-Bu-SO3H,Chitosan,Five-component}, url = {https://www.orgchemres.org/article_93729.html}, eprint = {https://www.orgchemres.org/article_93729_e5f32b0f7af84c9a51df20b085436afb.pdf} }