82.H3PMo12O40 immobilized chitosanFe3O4 as a novel efficient, green and recyclable nanocatalyst in the synthesis of pyrano-pyrazole derivatives.pdf (289.57 kB)
Download file

H3PMo12O40 immobilized chitosan/Fe3O4 as a novel efficient, green and recyclable nanocatalyst in the synthesis of pyrano-pyrazole derivatives

Download (289.57 kB)
journal contribution
posted on 2022-01-27, 00:07 authored by Majid Momhed HeraviMajid Momhed Heravi, Ali Ayati, Mansoureh Daraie, Bahareh Tanhaei, Fatemeh F. Bamoharram, Mika Sillanpää

A novel nanomagnetic composite heteropolyacid immobilized chitosan/Fe3O4 was prepared via a facile one-pot synthetic approach. This magnetically recoverable nanocatalyst, H3PMo12O40/chitosan/Fe3O4 (PMo/chit/Fe3O4), was fully characterized by XRD, FTIR, SEM and EDX analysis methods. A rapid, efficient and the chemoselective synthesis of different pyrano-pyrazole derivatives was achieved in excellent yields via a one-pot four-component reaction in the presence of catalytic amount of PMo/Chit/Fe3O4.


History