Nano-rice bran /TiCl4 a highly efficient catalyst for the one-pot synthesis of pyrano[3,2-b]pyrans

Subject Areas : Polymer

Sayed Rasul Shafe Mehrabadi ¹ , Bahareh Sadeghi ² , Saleheh Zavar ³

1 - Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran
2 - Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran
3 - Department of Chemistry, Payame Noor University, Tehran, Iran

Received: 2018-06-04 Accepted : 2018-06-04 Published : 2018-07-01

Keywords:

Abstract :

Nano-rice bran/TiCl4has been prepared from rice bran and TiCl4 in n-hexane as solvent. Thennanoricebran/TiCl4 has been introduced as a novel catalystfor the three component synthesis of pyrano[3,2-b] pyransfrom the simple one-pot reactionbetweenaryl aldehydes,cyanoacetamide and kojicacid.Cleanliness, an eco-friendly catalyst, simple methodology, short time, and excellent yields ofproducts are some advantages of this method.