TY - EJOUR
AU - Ayati, Ali
AU - Daraie, Mansoureh
AU - Heravi, Majid M.
AU - Tanhaei, Bahareh
PY - 2024
DA - February
TI - Tungstophosphoric acid embedded magnetic chitosan as a green catalyst for the synthesis of N-cyclohexyl-3-aryl quinoxaline-2-amines
T2 - Iranian Journal of Catalysis
VL - 7
L1 - https://oiccpress.com/iranian-journal-of-catalysis/article/tungstophosphoric-acid-embedded-magnetic-chitosan-as-a-green-catalyst-for-the-synthesis-of-n-cyclohexyl-3-aryl-quinoxaline-2-amines/
N2 - In the present study, a novel catalyst was well designed by incorporating the tungstophosphoric acid into the magnetic chitosan, as highly stable composite, in which the iron oxides were used the strong super-magnetic core. The prepared composite was characterized by several methods, including FTIR, XRD, SEM, TEM and EDS and its catalytic activity was examined in a facile, green and highly efficient one-pot reaction for the synthesis of N-cyclohexyl-3-aryl-quinoxaline-2-amines with o-phenylenediamine, benzaldehyde and cyclohexyl isocyanide in water, under reflux conditions. This heterogeneous catalytic system was separated easily by an external magnet and was reused at least in four runs without pre-activation and appreciable loss in its activity.
IS - 3
PB - OICC Press
KW - Multicomponent reactions, Heteropolyacid, Magnetic Chitosan, Green synthesis 
EN -