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Functionalization of Fe3O4@SiO2 nanoparticles with Cu(i)-thiosemicarbazone complex as a robust and efficient heterogeneous nanocatalyst for N-arylation of N-heterocycles with aryl halides.


ABSTRACT: In this research, the functionalized silica-coated magnetite nanoparticles with Cu(i)-thiosemicarbazone complex (Fe3O4@SiO2-[CuL]) has been designed and synthesized as a magnetically retrievable nanocatalyst. Different techniques were employed to characterize the structure of Fe3O4@SiO2-[CuL] comprising FT-IR, FE-SEM, TEM, DLS, XRD, EDX, TGA, AAS, and VSM analysis. The catalytic performance of Fe3O4@SiO2-[CuL] was perused in Ullmann-type N-arylation of nucleobases, xanthines, and other N-heterocycles with diverse aryl halides which acquired the desired N-aryl products in good to excellent yields. Fe3O4@SiO2-[CuL] is a thermal and chemical stable, easy to prepare and recyclable, inexpensive, and ecofriendly catalyst that needs no additional additive or ligand as promoters. This catalyst could be separated without difficulty by a simple magnet and reused for at least seven sequential runs without a significant decline in its catalytic performance.

SUBMITTER: Kaviani N 

PROVIDER: S-EPMC10577646 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature

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Functionalization of Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub> nanoparticles with Cu(i)-thiosemicarbazone complex as a robust and efficient heterogeneous nanocatalyst for <i>N</i>-arylation of N-heterocycles with aryl halides.

Kaviani Narjes N   Behrouz Somayeh S   Jafari Abbas Ali AA   Soltani Rad Mohammad Navid MN  

RSC advances 20231016 43


In this research, the functionalized silica-coated magnetite nanoparticles with Cu(i)-thiosemicarbazone complex (Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-[CuL]) has been designed and synthesized as a magnetically retrievable nanocatalyst. Different techniques were employed to characterize the structure of Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2</sub>-[CuL] comprising FT-IR, FE-SEM, TEM, DLS, XRD, EDX, TGA, AAS, and VSM analysis. The catalytic performance of Fe<sub>3</sub>O<sub>4</sub>@SiO<sub>2  ...[more]

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