M. A. Kuznetsov, A. Ya. Bespalov
«One-pot, Three-component Synthesis of [1,3]thiazolo[4,3-b][1,3,4]thiadiazoles: Correct Structure of the Products»
Chem. Heterocycl. Compd., 2014, 49, 1458-1463
DOI: 10.1007/s10593-014-1396-4
The products of the one-pot, three-component synthesis of [1,3]thiazolo-[4,3-b][1, 3, 4]thiadiazoles from aromatic aldehydes, thioglycolic acid, and compounds containing a C(=S)–N–NH2 fragment (thiosemicarbazide or 4-amino-2,4-dihydro-3H-1,2,4-triazole-3-thiones) are not condensed hetero-cycles (as reported by several researchers), but are thiosemicarbazones or triazolylimines of the aldehydes used.