D. A. Dushamov, Yu. R. Takhirov, R. Kuryazov
Sep 1, 2020
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Journal
Russian Journal of Organic Chemistry
Abstract
Treatment of 1,3-benzothiazol-2(3H)-one and its 3-methyl derivative with chlorosulfonic acid afforded the corresponding 2-oxo-2,3-dihydro-1,3-benzothiazole-6-sulfonyl chlorides which reacted with water, alcohols, and amines to give 2-oxo-2,3-dihydro-1,3-benzothiazole-6-sulfonic acids and their esters and amides.