Sulfur → HCID 178418395, compound

HRID 66946Notes

Reaction equation

HRID 66946 reaction equation
[C:1](=[S:3])=[S:2].[NH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[CH:7][CH:6]=1.[S]>>[SH:2][C:1]1[S:3][C:6]2[CH:7]=[CH:8][CH:9]=[CH:10][C:5]=2[N:4]=1

Participants

3

Reactant 2

HCID 5362487SulfurHCID 86738524Aniline carbon disulfide

Product 1

HCID 178418395HCID 178418395, compound

Procedure

In a process for purifying crude molten 2-mercaptobenzothiazole, prepared by reacting aniline carbon disulfide and sulfur at elevated temperature and pressure, in which the purification includes the steps of separating dissolved alkali metal salt of 2-mercaptobenzothiazole from undissolved impurities, treating the dissolved alkali metal salt of 2-mercaptobenzothiazole with an excess of a non-oxidizing mineral acid to precipitate a slurry of purified 2-mercaptobenzothiazole, separating the purified 2-mercaptobenzothiazole solids from the slurry to obtain 2-mercaptobenzothiazole solids, washing the solids with water, and drying the purified 2-mercaptobenzothiazole, the improvement comprising; forming said dissolved alkali metal salt at 2-mercaptobenzothiazole and said dissolved impurities by the steps of

Workup

  1. customIn a process for purifying crude molten 2-mercaptobenzothiazole
  2. customprepared
  3. customin which the purification
  4. customof separating
  5. dissolutiondissolved alkali metal salt of 2-mercaptobenzothiazole from undissolved impurities
  6. additiontreating the dissolved alkali metal salt of 2-mercaptobenzothiazole with an excess of a non-oxidizing mineral acid
  7. customto precipitate a slurry of purified 2-mercaptobenzothiazole
  8. customseparating the purified 2-mercaptobenzothiazole solids from the slurry

Sources & evidence

ORD record
ord-ae1e6ed6ae1146dba1195b0f6621b5e6
Source dataset
uspto-grants-1982_08
Patent number
US04343946

Reaction notes

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