Magnetically recyclable sepiolite/iron oxide/cupric oxide nanocomposite as a novel catalyst for the synthesis of S‐aryl dithiocarbamates by CS bond formation

A convenient and efficient procedure is described for the synthesis of S‐aryl dithiocarbamates by CS bond formation through the coupling reaction of three components between secondary amines, carbon disulfide, and aryl iodides using magnetically separable and reusable sepiolite/iron oxide/cupric ox...

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Bibliographic Details
Published in:Journal of the Chinese Chemical Society (Taipei) 2021-10, Vol.68 (10), p.1942-1953
Main Authors: Bagheri, Fatemeh Hassani, Khabazzadeh, Hojatollah, Fayazi, Maryam
Format: Article
Language:English
Subjects:
Amines
Aromatic compounds
Bonding
Carbon disulfide
Catalysts
Chemical synthesis
Copper oxides
cupric oxide
Dimethylformamide
Fourier transforms
heterogeneous catalyst
Inductively coupled plasma
Infrared spectroscopy
Iodides
Iron oxides
Morphology
Nanocomposites
Sepiolite
S‐aryl dithiocarbamates
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Summary:A convenient and efficient procedure is described for the synthesis of S‐aryl dithiocarbamates by CS bond formation through the coupling reaction of three components between secondary amines, carbon disulfide, and aryl iodides using magnetically separable and reusable sepiolite/iron oxide/cupric oxide (SEP/Fe3O4/CuO) nanocomposite as a heterogeneous catalyst. The results show that (SEP/Fe3O4/CuO) nanocomposite has good activity, and could be easily separated from the reaction mixture using an external magnet. The high efficiency of the nanocomposite was related to the temperature of 100°С and dimethylformamide (DMF) as a solvent. The structure, morphology, and crystalline phases of the prepared (SEP/Fe3O4/CuO) nanocomposite were characterized by Fourier transform infrared spectroscopy (FT‐IR), vibrating‐sample magnetometer (VSM), scanning electron microscopy (SEM), inductively coupled plasma (ICP), and X‐ray powder diffraction (XRD). The (SEP/Fe3O4/CuO) nanocomposite has good activity for the synthesis of S‐aryl dithiocarbamates. SEP/Fe3O4/CuO nanocomposite could be easily separated from the reaction mixture using an external magnet. Nanocomposite can be used at least three times without significant loss in its activity.
ISSN:0009-4536
2192-6549
DOI:10.1002/jccs.202100049