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title

Ni(II)- Carboxamide complex coated CoFe2O4 nanoparticles as high reusable catalyst for the oxidation of sulfides and oxidative coupling of thiols

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Year: 2019
COI code: ICCO02_033
Paper Language: English

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Authors Ni(II)- Carboxamide complex coated CoFe2O4 nanoparticles as high reusable catalyst for the oxidation of sulfides and oxidative coupling of thiols

  Mina Zohrevandi - Faculty of chemistry, University of Kurdistan, Kurdistan, Iran
  Roya Mozafari - Faculty of chemistry, University of Kurdistan, Kurdistan, Iran
  Mohammad Ghadermazi - Faculty of chemistry, University of Kurdistan, Kurdistan, Iran

Abstract:

Using magnetic nanoparticles as catalyst recyclability, fast, simple, effective and efficient catalyst recovery from the reaction mixture is possible without the need to lengthy, cumbersome and expensive centrifuge by using an external magnet. In addition to ease of isolation, this method increases the efficiency of catalyst recovery process, improving the purity of the products and high environmental and economic benefits will be rewarded. This is caused the magnetic nanoparticles be useful and practical tools in pharmaceutical, biotechnology and catalysis. Herein, new Ni(II)@Carboxamide complex immobilized on CoFe2O4 nanoparticles has been reported as a recoverable nanocatalyst for the oxidation of sulfides to sulfoxides and oxidative coupling of thiols into corresponding disulfides under mild conditions (Scheme 1). This organometallic catalyst was recovered by an external magnetic from the reaction mixture and reused for five continuous cycles without noticeable change in its catalytic activity.The newly magnetic nanoparticles were investigated with Elemental analysis FT-IR ،TGA، SEM ،VSM ،XRD and EDX techniques.

Keywords:

nanocatalyst, sulfoxides, Carboxamide

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COI code: ICCO02_033

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Zohrevandi, Mina; Roya Mozafari & Mohammad Ghadermazi, 2019, Ni(II)- Carboxamide complex coated CoFe2O4 nanoparticles as high reusable catalyst for the oxidation of sulfides and oxidative coupling of thiols, 2nd Iranian Catalyst Conference, تهران- دانشگاه خوارزمي- دانشكده شيمي, دانشگاه خوارزمي, https://www.civilica.com/Paper-ICCO02-ICCO02_033.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Zohrevandi, Mina; Roya Mozafari & Mohammad Ghadermazi, 2019)
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Type: state university
Paper No.: 4281
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