Synthesis and Characterization of Magnetic Functionalized Ni and Cu Nano Catalysts and Their Application in Oxidation, Oxidative Coupling and Various Multi-Component Reactions

Two magnetic nano catalysts of nickel and copper, Fe 3 O 4 @SiO 2 @DOP-BenPyr-M(II), (M=Ni and Cu) have been synthesized. These catalysts were applied as recoverable, efficient and new heterogeneous catalysts for the high yielding and room temperature one-pot procedure of selective oxidation of sulf...

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Bibliographic Details
Published in:Catalysis letters 2021-08, Vol.151 (8), p.2420-2435
Main Authors: Hajjami, Maryam, Sheikhaei, Shiva, Gholamian, Fatemeh, Yousofvand, Zakieh
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Catalytic activity
Chemical synthesis
Chemistry
Chemistry and Materials Science
Copper
Coupling
Industrial Chemistry/Chemical Engineering
Iron oxides
Nickel
Organometallic Chemistry
Oxidation
Oxidation-reduction reaction
Physical Chemistry
Room temperature
Silicon dioxide
Sulfides
Tetrazoles
Thiols
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Summary:Two magnetic nano catalysts of nickel and copper, Fe 3 O 4 @SiO 2 @DOP-BenPyr-M(II), (M=Ni and Cu) have been synthesized. These catalysts were applied as recoverable, efficient and new heterogeneous catalysts for the high yielding and room temperature one-pot procedure of selective oxidation of sulfides to sulfoxides and oxidative coupling of thiols to disulfides. In addition, the catalytic activity of Fe 3 O 4 @SiO 2 @DOP-BenPyr-Ni(II) was investigated as heterogeneous nanocatalyst for synthesis of 2,3-dihydroquinazolin-4(1H)-ones, 5-substituted 1H-tetrazoles and polyhydroquinolines. The synthesized catalysts were characterized by FT-IR, TGA, XRD, VSM, EDX, ICP and SEM techniques. These catalysts were recovered by an external magnet and reused several times without significant loss of catalytic efficiency. Graphic Abstract
ISSN:1011-372X
1572-879X
DOI:10.1007/s10562-020-03495-3