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 (Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran)
Bahareh  Sadeghi ² (Department of Chemistry, Yazd Branch, Islamic Azad University, Yazd, Iran)
Saleheh  Zavar ³ (Department of Chemistry, Payame Noor University, Tehran, Iran)

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

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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.