CONDENSED HETEROCYCLES WITH A THIAZOLE RING. 7. THIAZOLOTHIAZOLOPYRIMIDINES

Article abstract of DOI:10.1007/BF00506102

The condensation of 4-amino-2-methylthio-5-phenylthiazolium benzenesulfonate with 2-oxo-5-formyl-4-chloro-4-thiazoline gave a salt of a previously unknown three-ring heterosystem, which was used for the synthesis of thia- and 4-quinomonomethylidynecyanine