Green Synthesis of TiO2@Si(CH2)3@[3-methyl-imidazoliume]Cl Core/Shell Nanocatalyst for Highly Efficient Synthesis of Benzo[4,5]imidazo[1,2-a]pyrimidine Derivatives
Paper ID : 1409-ICNS
raziyeh bakhshali Dehkordi1, Mohammad Ali Ghasemzadeh *1, Javad Safaei‐Ghomi2
1Department of Chemistry, Qom Branch, Islamic Azad University, Qom, Iran
2Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan Iran.
In this work, TiO2 nanoparticles was green synthesized in aqueous solutions via a rapid green method using beet juice, an abundant sugar-rich agricultural produce, served as both a reducing and a capping reagent. Green technology is a set of principles or rather a chemical philosophy that encourages the design of products and processes that reduce or eliminate the use and generation of hazardous substances. This TiO2 nanoparticles has been functionalized by 1-methyl-3-(3-trimethoxy-silylpropyl)imidazolium chloride ionic liquid and used as novel, mild and environmentally friendly nanocatalyst for an efficient one-pot synthesis of biologically active of benzo[4,5]imidazo[1,2-a] pyrimidine derivatives. The present methodology offers several advantages, such as excellent yields, simple procedures, short reaction times, simple work-up and mild conditions. The nanocatalyst is easily separated from the products by filtration and also exhibits remarkable reusable activity. The nanocatalyst was characterized by scanning electron microscopy (SEM), energy dispersive analysis of X-ray (EDX), Powder X-ray diffraction (XRD) and Fourier transforms infrared (FT-IR) spectroscopy analysis.
Ionic liquids; Benzo[4,5]imidazo[1,2-a]pyrimidines; TiO2; Nanocatalyst
Status : Abstract Accepted (Poster Presentation)