Title:Synthesis of SrCO3 Nanoparticles Supported on Montmorillonite as
Efficient Catalyst in the Preparation of α, ά-bis(substituted benzylidene)
cycloalkanones
Volume: 19
Issue: 11
Author(s): Azim Mohammadpour and Enayatollah Sheikhhosseini*
Affiliation:
- Department of Chemistry, Kerman Branch, Islamic Azad University, Kerman, Iran
Keywords:
SrCO3 nanoparticles, solvent free, microwave method, α, α-bis(substituted-benzylidene) cycloalkanone, bentonite, cross-aldol condensation.
Abstract: In the present study, the SrCO3@montmorillonite nanocomposite was synthesized by
loading Sr(NO3)2 on natural bentonite using a controlled and facile microwave method. The
SrCO3@montmorillonite nanoparticles’ characteristics are identified using advanced techniques, such
as infrared spectroscopy (IR), energy‐dispersive X‐ray analysis (EDX), X-ray diffraction analysis
(XRD), scanning electron microscopy (SEM), and pore size distribution analysis. Crossed-aldol condensation
of an aromatic aldehyde with cycloalkanone in the presence of these nanoparticles produced
α, ά-bis(substituted-benzylidene) cycloalkanones in good yields without using any solvent. The present
method is operationally simple and dose not use organic solvent, which makes the process environmentally
benign.