عبدالکریم زارع

Nano-[Fe3O4@SiO2@Si-Pr-Bipyr][FeCl4] (NFSPBF), as a novel magnetic nanomaterial, was fabricated, and its structure was corroborated using EDX, elemental mapping, FE-SEM, XRD, FT-IR, TG, and VSM analyses. In continuation, NFSPBF was employed as an efficacious catalyst for the one-pot multi-component reaction of acetoacetanilide, aryl aldehydes, and 3-amino-1,2,4-triazole to give 1,2,4-triazolo[1,5-a]pyrimidines in high yields (86−95%) and short times (10−15 min). NFSPBF could act as a dual-functional catalyst; FeCl−4 of nano-[Fe3O4@SiO2@Si-Pr-Bipyr][FeCl4] is a Lewis acid, and its pyridine moiety is a base. It was reusable for two times without a remarkable decrement in its catalytic performance.