| 摘要 |
PURPOSE:To obtain the titled compound useful as a raw material for dye, coating compound, agricultural chemical, or drug in high yield advantageously, by reacting a 2-mercaptobenzothiazole derivative with a chlorine gas in an organic solvent of aromatic hydrocarbon in the presence of a tertiary amine compound. CONSTITUTION:A compound shown by the formula I (X is H, lower alkyl, halogen-substitued lower alkyl, lower alkoxy, or halogen) is reacted with a chlorine gas in an aromatic hydrocarbon organic solvent such as benzene, toluene, xylene, ethylbenzene, cumene, chlorobenzene, etc. in the presence of a tertiary amine compound such as triethylamine, tributylamine, pyridine, N.N- dimethylaniline, 4-N.N-dimethylaminopyridine, etc., to give the aimed compound shown by the formula II, in high yield. This method provides hydrocloric acid and sulfuric acid as by-products. Since they can be easily removed out of the system by alkali treatment or filtration, countermeasures for pollution such as a smell, waste liquor treatment, etc., are carried out easily.
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