3-Oxoisothiazolopyridines were synthesized for the first time by the reaction of 3-cyanopyridine-2-thiones or bis(3-cyanopyridyl) disulfides with concentrated sulfuric acid.It is demonstrated that 3-carbamoylpyridine-2-thiones are formed as intermediates.The 3-oxoisothiazolopyridines were converted to 3-bromoisothiazolopyridines and pyridine-2-thiones.The bromination of pyridine-2-thione was studied.
Krauze, A. A.,Bomika, Z. A.,Pelcher, Yu. E.,Mazheika, I. B.,Dubur, G. Ya.
p. 385 - 390
(2007/10/02)
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