One-pot Synthesis of Pyrano[2,3-d]Pyrimidines using Nanocellulose-SbCl5 as a Highly Efficient and Bio-based Catalyst


1 Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran

2 Department of Chemistry, Payame Noor University, Tehran, Iran


The reaction of nano-cellulose and antimony pentachloridein dichloromethane gave nano-cellulose-
SbCl5. Also nano-cellulose-SbCl5 has beencharacterized by energy dispersive X-ray spectroscopy
(EDX), scanning electron microscopy (SEM)and Fourier transform infrared spectroscopy(FTIR).
Nano-cellulose-SbCl5has been applied as a nano-catalyst for synthesis of pyrano[2,3-
d]pyrimidines from the simple one-pot reaction between aryl aldehydes,barbituric acid or
thiobarbituric acid and malononitril.Cleanliness, simple methodology, short time, and excellent
yields of products are some advantages of this method.