Synthesis and optical characterization of new ketocyanine dyes with extended polymethine chaines,Journal of Heterocyclic Chemistry

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Synthesis and optical characterization of new ketocyanine dyes with extended polymethine chaines
Journal of Heterocyclic Chemistry ( IF 2.0 ) Pub Date : 2020-06-11 , DOI: 10.1002/jhet.4027
Sergey Miltsov ₁ , Julian Alonso‐Chamarro ₂ , Mar Puyol ₂

Affiliation

New symmetrical and unsymmetrical near‐infrared absorbing ketocyanine‐type dyes are synthesized and their optical characterization is done. The relationships between their structure and optical properties are discussed. The synthesized ketocyanine dyes show a positive solvatochromism and are poorly fluorescent. A new procedure for the preparation of N ,N ,N ′,N ′‐ tetramethylvinamidinium perchlorate, which was a very useful reagent for the synthesis of various heterocyclic compounds as well as for the preparation of cyanine dyes is developed.

中文翻译：

延伸的聚次甲基链的新型酮菁染料的合成和光学表征

合成了新的对称和不对称的近红外吸收酮氰酸型染料，并完成了其光学表征。讨论了它们的结构与光学性质之间的关系。合成的酮花青染料显示出正溶剂溶变色，并且荧光性差。用于制备的新的程序Ñ，Ñ，Ñ '，Ñ ' - tetramethylvinamidinium高氯酸盐，这对各种杂环化合物以及为花青染料的制备的合成一个非常有用的试剂显影。

更新日期：2020-08-08

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