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
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- EP ID EP468834
- DOI 10.22034/ajgc.2018.65504
- Views 84
- Downloads 0
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