Title of article :
Nano-cellulose-OSnCl4-x: Green and natural-based renewable nanocatalyst for one-pot synthesis of 2-amino-3-phenylsulfonyl-4H-pyran derivatives
Author/Authors :
Shafe-Mehrabadi ، Rasul Department of Chemistry - Islamic Azad University, Yazd Branch , Sadeghi ، Bahareh Department of Chemistry - Islamic Azad University, Central Tehran Branch , Mosslemin ، Mohammad Hossein Department of Chemistry - Islamic Azad University, Yazd Branch , Hashemian ، Saeedeh Department of Chemistry - Islamic Azad University, Yazd Branch
Abstract :
A highly efficient, eco-friendly procedure has been proposed for the synthesis of 2-amino-3-phenylsulfonyl-4H-pyran derivatives via nano-cellulose-OSnCl4-x catalyst prepared from cotton as support treated with tin tetrachloride (SnCl4). This catalyst is characterized by FT-IR, FESEM, TEM, TGA, and EDX. The TEM results confirmed the size of the nano-cellulose-OSnCl4-x catalyst was below 30 nm. The efficiency of this solid acid catalyst was investigated in one-pot, three-component condensation reactions with aromatic aldehydes, dimedone, and phenylsulfonylacetonitrile under reflux conditions. As a result, 2-amino-3-phenylsulfonyl-4H-pyran derivatives were produced under facile conditions in high yield (84-95%) and high rate (30-50 min) using nano-cellulose-OSnCl4-x as a recyclable catalyst.
Keywords :
Phenylsulfonylacetonitrile , Pyran derivatives , Dimedone , green chemistry , nano , cellulose , OSnCl4 , x
Journal title :
Iranian Journal of Catalysis
Journal title :
Iranian Journal of Catalysis
