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Molecules 2006
Criss-cross Cycloadditions on Ketazines Derived from Alicyclic KetonesDOI: 10.3390/11010034 Keywords: Criss-cross cycloaddition, ketazines, cyclohexanone azine, cyclopentanone azine, cycloheptanone azine, substituted perhydro[1, 2, 4]triazolo[1, 2-a][1, 2, 4]triazole-1, 5- diones, substituted perhydro[1, 2, 4]triazolo[1, 2-a][1, 2, 4]triazole-1, 5-dithiones, spiro compounds. Abstract: The reactivity of alicyclic ketazines in criss-cross cycloadditions was investigated. They react with potassium cyanate and ammonium thiocyanate in the presence of acetic acid to form spirocyclic perhydro[1,2,4]triazolo[1,2-a][1,2,4]triazole-1,5-diones and perhydro[1,2,4]triazolo[1,2-a][1,2,4]triazole-1,5-dithiones, respectively, in relatively high yields.
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