Cu/Ni-doped sulfated zirconium oxide immobilized on CdFe2O4 NPs: a cheap, sustainable and magnetically recyclable inorgano-catalyst for the efficient preparation of α-aminonitriles in aqueous media

AuthorsMohammad ali Nasseri,,Ali Allahresani
JournalResearch on Chemical Intermediates
Page number4233-4256
Serial number46
IF1.369
Paper TypeFull Paper
Published At2020
Journal GradeISI
Journal TypeTypographic
Journal CountryNetherlands
Journal IndexJCR،Scopus

Abstract

A new multifunctional bimetallic nanocatalyst was prepared by immobilization of Cu/Ni-doped sulfated zirconium oxide on magnetic cadmium ferrite (CdFe2O4@ SiO2@ZrO2/SO4 2−/Cu/Ni) and used as an efcient recyclable catalyst for one-pot as well as stepwise preparation of α-aminonitriles under mild conditions. The magnetic nanocatalyst was characterized by FTIR, TGA, VSM, XRD, EDX, FE-SEM, and TEM analyses. Also, the surface acidity of the catalyst was measured by pyridine adsorption assay. The catalyst possesses various active sites which could catalyst a variety of aromatic and aliphatic aldehydes to the corresponding α-amionitriles under moderate to high yields in the presence of aniline. Furthermore, transformation of ketones to the desired α-amionitriles and some bis-aminonitriles was also performed by this method. The catalyst could be readily recovered from the reaction mixture and reused for several times without signifcant loss of activity.

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tags: Sulfated zirconium oxide · α-Aminonitrile · Strecker synthesis · Ketone · Cu/Ni bimetallic