Cu(II)-Schiff Base/SBA-15 as an efficient catalyst for synthesis of benzopyrano[3,2-c]chromene-6,8-dione derivatives
Journal Title: Asian Journal of Green Chemistry - Year 2019, Vol 3, Issue 1
Abstract
In this study, we synthesized the benzopyrano[3,2-c]chromene-6,8-dione derivativesby one-pot multi-component reaction of 1,3-cyclohexanedione, arylaldehydes, and 4-hydroxycoumarin under the solventless condition using Cu(II)-Schiff base/SBA-15 as a reusable heterogeneous catalyst in high yields. These kinds of catalysts are built from mesoporous silica SBA-15 which is covalently anchored with Cu(II)-Schiff base complex. The high yields, simple work-up procedure, reuseability of the catalyst, and environmentally friendly conditions are the main advantages of this method compared to the other techniques. The products were identified by using 1H NMR, mass and IR spectra, which were compared to those reported previously.
Authors and Affiliations
Radineh Motamedi, Fariba Ebrahimi, Ghasem Rezanejade Bardajee
Keywords
Related Articles
- EP ID EP468834
- DOI 10.22034/ajgc.2018.65504
- Views 101
- Downloads 0
Green synthesis and antibacterial activity of cadmium sulfide nanoparticles (CdSNPs) using Panicum sarmentosum
The plant sources can act as potential precursors for the synthesis of nanoparticles in non-hazardous ways as plants contain various secondary metabolites, acting as reducing and stabilizing agents for the reduction reac...
Synthesized nanoparticles of poly (Styrene–alternative-maleic anhydride) and prunus cerasus rock used for removing Cadmium (II) ions from aqueous solutions
Chelating adsorbents have been considered to be suitable materials for the recovery of cadmium in water treatments. Adsorption of Cadmium (II) ions on melamine-butanedioic acid, modified poly (Styrene-alternative-maleic...
Synergy of binary ionic liquids in a three component one-pot synthesis of 3,4,6-triarylpyridazine at ambient temperature
A mixture of two ionic liquids have been used for a green synthesis of 3,4,6-triarylpyridazine in high yield and at room temperature. The two ionic liquids acts in tandem. The advantage of this method is a room temperatu...
Green oxidation reactions by graphene oxide-based catalyst with aqueous hydrogen peroxide
This study reports the synthesis, characterization and catalytic properties of a novel supported catalyst on the basis of nickel acetate hydrate (NiOAC) immobilized on graphene oxide (GO) modified polyethylene glycol (PE...
Gelatin grafted with drug
In this research a novel drug polymer was prepared. The gelatin as a natural polymer has been used in the pharmaceutical and biomedical for the controlled release through grafted copolymerization with un saturated acid...