- Synthesis and characterization of magnetic copper ferrite nanoparticles and their catalytic performance in one-pot odorless carbon-sulfur bond formation reactions
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In this article, we have introduced catalytic application of copper ferrite nanoparticles (CuFe2O4) for one-pot odorless production of aryl alkyl thioethers using thiourea and alkyl bromides in wet polyethylene glycol as a green solvent. The catalyst was also successfully applied for one-pot synthesis of symmetrical diaryl trithiocarbonates via the reaction of sodium sulfide, carbon disulfide and aryl iodides under heterogeneous reaction condition. Magnetic copper ferrite nanoparticles were synthesized using iron (III) chloride and copper (II) chloride, and characterized using XRD, FT-IR, AAS, and TEM analysis. The catalyst was recycled using simple magnetic separation and reused for the five consecutive runs in the reaction of iodobenzene, thiourea and benzyl bromide without appreciable loss of activity.
- Gholinejad, Mohammad,Karimi, Babak,Mansouri, Fariborz
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- One-pot synthesis of symmetrical diaryl trithiocarbonates through copper-catalyzed coupling of aryl compounds, sodium sulfide, and carbon disulfide
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In this study, a protocol for the synthesis of symmetrical diaryl trithiocarbonates through the one-pot copper-catalyzed coupling reaction of sodium sulfide, carbon disulfide, and aryl compounds in DMF solution is presented. This method allows the synthesis of symmetrical diaryl trithiocarbonates without the use of highly toxic thiophosgene, and also, commercially available aryl halides were used instead of less available, toxic thiols.
- Gholinejad, Mohammad
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p. 257 - 259
(2013/02/25)
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- SYNTHESIS, STRUCTURE, AND REACTIONS OF THIOCARBONIC ACID DERIVATIVES NEW PENTATHIODIPERCARBONATES, (RSS)2C=S, α,α,α-TRIS(DISULFIDES), AND THE FIRST α,α,α-TRIS(TRISULFIDE)
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Novel bis(perhaloalkyl) pentathiodipercarbonates 5b-d have been synthesised by reaction of sulfenyl chlorides with metal trithiocarbonates, and the heptathio analog 21a was prepared similarly.Lenthionine 19 is the main product when diiodomethane is treated with sodium tetrathiopercarbonate.A rearrangement of bis(alkyltrithio)dichloromethanes 24 has been observed.Additions of sulfenyl chlorides and of thiosulfenyl chlorides to the thiocarbonyl compounds 5 and 21a were achieved in acetonitrile.The structures of the first crystalline pentathiodipercarbonate 5a and α,α,α-tris(disulfide) 29a, and of the first reported α,α,α-tris(trisulfide) 31a have been determined by X-ray crystallography.
- Hansen, Holger C.,Senning, Alexander,Hazell, Rita G.
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p. 5145 - 5158
(2007/10/02)
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