反应 #95224

反应方程式

aniline carbon disulfide

sulfur

→

2-mercaptobenzothiazole

反应条件

后处理

1. 1
   其他In a process for purifying crude molten 2-mercaptobenzothiazole
2. 2
   其他prepared
3. 3
   其他in which the purification
4. 4
   其他of separating
5. 5
   workup.DISSOLUTIONdissolved alkali metal salt of 2-mercaptobenzothiazole from undissolved impurities
6. 6
   workup.ADDITIONtreating the dissolved alkali metal salt of 2-mercaptobenzothiazole with an excess of a non-oxidizing mineral acid
7. 7
   其他to precipitate a slurry of purified 2-mercaptobenzothiazole
8. 8
   其他separating the purified 2-mercaptobenzothiazole solids from the slurry

实验过程

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

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