Nano-SiO2/Taurine as a new natural based catalyst for synthesis of hexahydroquinolines derivative
محورهای موضوعی : Iranian Journal of Catalysis
Saeed Sharifi Sharifabad
1
(Department of Chemistry, College of Science, Yazd University, Yazd, P.O. Box 89195-741, Iran)
Bi Bi Fatemeh Mirjalili
2
(Department of Chemistry, College of Science, Yazd University, Yazd, P.O. Box 89195-741, Iran)
Abdolhamid Bamoniri
3
(Department of Organic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran)
کلید واژه: ethyl acetoacetate, Dimedone, Nano-SiO2/Taurine, hexahydroquinoline,
چکیده مقاله :
In this research work, Nano-SiO2/Taurine was synthesized and characterized by FT-IR, energy dispersive X-ray analysis (EDX), scanning electron microscopy (SEM), X-ray diffraction patterns (XRD) ,Thermogravimetric analysis (TGA) and MAP analysis. Nano-SiO2/Taurine has considerable benefits such as simple preparation protocol, simple handling, high acidic property, reusability and high stability. Nano-SiO2/Taurine was used as a catalyst for the synthesis of hexahydroquinolines by the reaction of ethyl acetoacetate, dimedone and ammonium acetate with various aldehydes. These reactions were carried out under solvent-free conditions at 85 °C. The present protocol is simple, eco-friendly and efficient. The hexahydroquinolines were produced at high yields and short reaction times.