Polymethine dyes based on pyrylium salts with unsaturated cyclic groups in the 4-position

1Kurdyukov, VV, 1Tolmachev, AI
1Institute of Organic Chemistry of the NAS of Ukraine, Kyiv
Dopov. Nac. akad. nauk Ukr. 2017, 12:90-96
https://doi.org/10.15407/dopovidi2017.12.090
Section: Chemistry
Language: Russian
Abstract: 

2,6-Diphenyl-substituted pyrylium salts containing unsaturated cyclic groups are synthesized. They are shown to be feasible precursors for the synthesis of symmetric and unsymmetric dyes. The spectral properties of synthesized dyes are studied in solvents of different polarities.

Keywords: 1;5-diketones, cyclic groups, dicarbocyanines, polymethine chain, pyrylium salts, styryl dyes, tetra car bocyanines
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