@article{Ayati_Daraie_Heravi_Tanhaei_2024, title={Tungstophosphoric acid embedded magnetic chitosan as a green catalyst for the synthesis of N-cyclohexyl-3-aryl quinoxaline-2-amines}, volume={7}, url={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/}, abstractNote={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.}, number={3}, journal={Iranian Journal of Catalysis}, publisher={OICC Press}, author={Ayati, Ali and Daraie, Mansoureh and Heravi, Majid M. and Tanhaei, Bahareh}, year={2024}, month={Feb.}, keywords={Magnetic Chitosan, Green synthesis, Multicomponent reactions, Heteropolyacid} }