Abstract
An efficient, simple, and mild strategy for the one-pot multicomponent synthesis of pyrano[2,3-d]pyrimidinone and pyrano[2,3-d]pyrimidine-2,4,7-trione derivatives is described using SCMNPs@Urea/Py-CuCl2 nanoparticles as a reusable heterogeneous magnetic nanocatalyst. The catalyst was characterized using Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), vibrating sample magnetometry (VSM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The SCMNPs@Urea/Py-CuCl2 can be easily collected from the reaction solution by magnetic decantation using a permanent magnetic field and reused in six runs without significant decrease in catalytic activity.
Graphical Abstract
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Acknowledgement
This work was supported by National Natural Science Fund of China (No. 51762010), Guizhou Provincial High-level innovative talents (2015-4006).
Disclosure statement
No potential conflict of interest was reported by the authors.