Browsing by Subject "Ring transformation"
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The conversion of [(4-chloro-5H-1,2,3-dithiazol-5-ylidene)amino]azines into azine fused thiazole-2-carbonitriles (2013)The thermolysis of several N-(4-chloro-5H-1,2,3-dithiazol-5-ylidene) pyridin-n-amines (where n = 2, 3 and 4) gives a mixture of thiazolopyridine-2- carbonitriles in low to moderate yields. Introduction, by design, of a ...
Ring transformation of (4-chloro-5H-1,2,3-dithiazol-5-ylidene)acetonitriles to 3-haloisothiazole-5-carbonitriles (2014)Ring transformation of readily prepared (4-chloro-5H-1,2,3-dithiazol-5- ylidene)acetonitriles afford 3-haloisothiazole-5-carbonitriles in good to excellent yields. The transformation can be mediated using HBr (g), HCl (g) ...