Substitution Reactions on the Thiazole Ring

Chemical Properties of Benzothiazoles. - Substitution Reactions on the Thiazole Ring. 2-Chlorobenzothiazoles are obtained by substitution of 

2-NaS(K)-benzothiazoles by Clj or by reaction of SOCI2 with 2-NH2NH-benzothiazoles. 2-Chlorobenzothiazoles are etherified to benzothiazol-2-yl ethers, also obtained by displacement of the 2-methylsulphonyl group by 

Fiser-Jakic and K. Jackopcic, Croat. Chem. Acta, 1981, 54, 245 Chem. Abstr., 1981, 95, 219491). 

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