Asymmetric polymethine dyes based on thiazolo[3,2-a]quinoxalinium salts
β Scribed by K. V. Fedotov
- Publisher
- Springer US
- Year
- 1992
- Tongue
- English
- Weight
- 266 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0009-3122
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π SIMILAR VOLUMES
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
## Abstract magnified image A number of new polymethine dyes based on the boron difluoride complexes of dehydroacetic acid and 3βacetylβ4βhydroxypyridone has been synthesized. Their spectralβluminescent properties have been investigated. The reaction of obtained merocyanines with primary and secon