G. L'abbé, A. Frederix
Jul 1, 1990
Citations
0
Influential Citations
13
Citations
Journal
Journal of Heterocyclic Chemistry
Abstract
A convenient method for the synthesis of the virtually unknown 1,2,3-thiadiazole-5-carbaldehydes consists in monobromination of the 5-methyl derivatives, followed by treatment with sodium azide and decomposition in concentrated sulfuric acid (6 7 9 10). These compounds can be transformed via methylation of the corresponding hydrazones 12 into 6aδ4-thia-1,2,5,6-tetraazapentalenes 13.