TY - EJOUR
AU - Shafe-Mehrabadi, Sayed Rasul
AU - Sadeghi, Bahareh
AU - Mosslemin, Mohammad Hossein
AU - Hashemian, Saeedeh
PY - 2023
DA - December
TI - Nano-cellulose-OSnCl4-x: Green and natural-based renewable nanocatalyst for one-pot synthesis of 2-amino-3-phenylsulfonyl-4H-pyran derivatives
T2 - Iranian Journal of Catalysis
VL - 12
L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/nano-cellulose-osncl4-x-green-and-natural-based-renewable-nanocatalyst-for-one-pot-synthesis-of-2-amino-3-phenylsulfonyl-4h-pyran-derivatives/
DO - 10.30495/ijc.2022.1958448.1933
N2 - 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. Highlights Preparation, characterization and application of nano-cellulose-OSnCl4-x as a green and natural-based nanocatalyst Nano-cellulose-OSnCl4-x as a renewable nanocatalyst for one-pot synthesis of 2-amino-3-phenylsulfonyl-4H-pyran derivatives Synthesis of new derivatives of 2-amino-7,8-dihydro-7,7-dimethyl-4-phenyl-3-(phenylsulfonyl)-4H-chromen-5(6H)-one Prominent among the advantages of this method are working simplicity, mild reaction condition, short reaction times, higher yields, and environmental friendliness 
IS - 4
PB - OICC Press
KW - Green chemistry, Phenylsulfonylacetonitrile, Pyran derivatives, Dimedone, Nano-cellulose-OSnCl4-x. 
EN -