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Condensed heterocycles containing a thiazole ring. 19. Naphthothiazolopyridinium(quinolinium) salts

โœ Scribed by N. N. Romanov; O. V. Lazareva

Book ID
104781309
Publisher
Springer US
Year
1990
Tongue
English
Weight
218 KB
Volume
26
Category
Article
ISSN
0009-3122

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Condensed heterocycles with a thiazole r
Condensed heterocycles with a thiazole ring. 16. Cyanine dyes based on thiazolo[3,4-a]pyridinium salts
โœ Yu. P. Kovtun; N. N. Romanov ๐Ÿ“‚ Article ๐Ÿ“… 1988 ๐Ÿ› Springer US ๐ŸŒ English โš– 335 KB

The reaction of 2-(=-chlorobenzyl)pyridines with thioacetamide gave 3-methyll-arylthiazolo [3,4-a]pyridinium salts, which form cyanines. It was established that the thiazolopyridinium ring in the dyes has high electron-donor character and a great effective length. Quaternary salts of 2-methylthiazo