Abstract
In this study, Fe3O4@SiO2-SO3H was prepared as an efficient and reusable solid acid catalyst and its catalytic activity was considered in the synthesis of pyrano[3,2-c]quinoline-2,5-dione derivatives by the three-component reaction of 4-hydroxyquinolin-2(1H)-one, Meldrum’s acid and arylaldehydes under thermal solvent-free conditions at 70 °C. This catalytic system can be reused minimally for five times without any noticeable loss of activity. In addition, the characteristic analysis of Fe3O4@SiO2-SO3H, such as thermogravimetric analysis, Fourier-transform infrared spectroscopy, vibrating sample magnetometer, scanning electron microscope, and X-ray diffraction was performed.
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.