• Title/Summary/Keyword: N,N,N',N'-Tetrabromobenzene-1,3-disulfonamide (TBBDA)

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N,N,N',N'-Tetrahalobenzene-1,3-disulfonamide/PPh3 as an Efficient System for the Preparation of Alkyl Halides

  • Ghorbani-Vaghei, Ramin;Shiri, Lotfi;Ghorbani-Choghamarani, Arash
    • Bulletin of the Korean Chemical Society
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    • v.34 no.3
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    • pp.820-822
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    • 2013
  • N,N,N',N'-Tetrabromobenzene-1,3-disulfonamide (TBBDA)/$PPh_3$ and N,N,N',N'-tetrachlorobenzene-1,3-disulfonamide (TCBDA)/$PPh_3$ are two highly reactive reagent systems for the conversion of alcohols corresponding into alkyl chlorides and bromides in moderate to excellent yields in dichloromethane at room temperature under mild and neutral conditions.

A New and Facile Protocol for the Synthesis of Dithiocarbamate-linked 3,4-Dihydro-2H-pyran Using N-Halo Catalysts Under Mild Conditions Reaction

  • Ghorbani-Vaghei, Ramin;Amiri, Mostafa;Veisi, Hojat
    • Bulletin of the Korean Chemical Society
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    • v.33 no.12
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    • pp.4047-4051
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    • 2012
  • A new and facile protocol for the synthesis of dithiocarabamate in EtOH/$H_2O$ is described. Reaction of aromatic and aliphatic amines with $CS_2$ and 3,4-dihydro-2H-pyran in the presence of N,N,N',N'-tetrabromobenzene-1,3-disulfonamide [TBBDA] and poly(N-bromo-N-ethylbenzene-1,3-disulfonamide) [PBBS] gives the corresponding dithiocarbamates in good to high yields.