TY - EJOUR
AU - Shirini, Farhad
AU - Makhsous, Masoumeh
AU - Seddighi, Mohadeseh
PY - 2024
DA - February
TI - Introduction of Brönsted acidic ionic liquid supported on nanoporous Na+-montmorillonite as an efficient catalyst for the synthesis of 2-amino-tetrahydro-4H-pyrans
T2 - Iranian Journal of Catalysis
VL - 7
L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/introduction-of-bronsted-acidic-ionic-liquid-supported-on-nanoporous-na-montmorillonite-as-an-efficient-catalyst-for-the-synthesis-of-2-amino-tetrahydro-4h-pyrans/
N2 - Nanoporous sodium montmorillonite clay (Na+-MMT) was used as a support for the immobilization of 1-methyl-3-(trimethoxysilylpropyl)-imidazolium hydrogen sulfate (Na+-MMT-[pmim]HSO4). This catalyst showed excellent catalytic activity for the preparation of 2-amino-3-cyano-5-oxo-5,6,7,8-tetrahydro-4H-benzopyrans via three-component reactions between aldehydes, dimedone and malononitrile. The procedure gave the products in high yields within short reaction times. Also, this catalyst can be reused at least for five times without loss of its catalytic activity. All the products were characterized using melting point, IR, 1H NMR and 13C NMR and were identified by comparison of their spectra with those of authentic samples.  
IS - 1
PB - OICC Press
KW - Na+-montmorillonite, Clay, Immobilization of ionic liquid, Pyran. 2-Amino-4H-pyrans, Multi-component reactions 
EN -