반응 #95224

반응 방정식

aniline carbon disulfide

sulfur

→

2-mercaptobenzothiazole

반응 조건

후처리

1. 1
   기타In a process for purifying crude molten 2-mercaptobenzothiazole
2. 2
   기타prepared
3. 3
   기타in which the purification
4. 4
   기타of 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
   기타to precipitate a slurry of purified 2-mercaptobenzothiazole
8. 8
   기타separating the purified 2-mercaptobenzothiazole solids from the slurry

실험 절차

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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