Pyrylocyanines. 23. 2-Pyrylocarbocyanines with substituents in hetero residues |
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| Authors: | I. I. Boiko N. A. Derevyanko A. A. Ishchenko T. A. Markina A. I. Tolmachev |
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| Affiliation: | (1) Institute of Organic Chemistry, Academy of Sciences of the Ukrainian SSR, 252660 Kiev;(2) Pereslavl' Branch, All-Union Scientific-Research and Planning Institute of the Photographic Industry, 152140 Perselavl'-Zalesskii |
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| Abstract: | Symmetric 2-pyrylo- and asymmetric (indo)(2-pyrylo)trimethinecyanines with substituents of different electronic nature in the pyran residue were synthesized. The influence of the conjugation effect and inductive effect on the characteristics of absorption bands of the synthesized dyes was analyzed by a quantum chemical calculation according to a common MO Hückel method.For Communication 22, see [1].Translated from Khimiya Geterotsiklicheskikh Soedinenii No. 12, pp. 1607–1613, December, 1986. |
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