Abstract
A Copper(II) Schiff-base complex immobilized mesoporous silica-41 (Copper-Schiff base@MCM-41) was synthesized using the ultrasonication method. The formation of material with expected morphological and structural features was confirmed with various characterization techniques including UV-DRS, FTIR, LXRD, SEM, EDAX, ICP-AES, HR-TEM, BET, TGA-DTA, and ESR analyses. Furthermore, the Copper-Schiff base@MCM-41 catalyzed Biginelli reaction has performed under an eco-friendly solvent approach at room temperature, achieving high product yield. After the completion of the reaction, the catalyst was easily recovered using the filtration method and reused for another reaction, maintaining comparable product yield up to five repetitive cycles without any major catalytic activity decay. The exhibition of excellent catalytic activity towards 3,4-dihydropyrimidone derivatives with high product yield in a short time at room temperature proved that the Copper-Schiff base@MCM-41 is a more effective heterogeneous catalyst toward the Biginelli reaction compared to other catalysts. The plausible reaction mechanism has proposed based on the study.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
