Abstract
We have reported NiFe2O4@SiO2@Melamine for the first time to catalyzed one-pot three components synthesis of spiropyrans and spiroacenaphthylenes via the reaction of ninhydrin/acenaphthoquinone, malononitrile/ethyl cyanoacetate and various 1,3-dicarbonyl compounds. Nickel ferrite nanoparticles were modified with melamine. [3-(2,3-Epoxypropoxy)propyl]trimethoxysilane (EPO) was used as cross linker to bond melamine (organic phease) on the surface of Nickel ferrite nanoparticles (inorgarnic phase). The synthesized catalyst was characterized by FT-IR, SEM, XRD, TGA, VSM and EDX. This new method has superiority of recyclable heterogeneous catalyst that could be easily removed from the reaction mixture by an external magnet, short reaction time, high product yields, and economically and environmentally benign conditions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.