作者:Anastasiya I. Ershova、Anastasiya U. Alekseeva、Oleg V. Ershov、Mikhail Yu. Ievlev、Ivan N. Bardasov
DOI:10.1016/j.dyepig.2021.109914
日期:2022.1
The synthesis of novel highly efficient fluorescent dyes of 4-amino-2-chloro-6-arylpyridine-3,5-dicarbonitrile series via heterocyclization of aryl(heteryl)methylidene derivatives of malononitrile dimer bearing electron-donor groups was described. Solvatochromic behavior and substituents effect on the spectral-luminescent properties were also investigated. Strong solvatochromism and high relative fluorescence
描述了通过带有电子供体基团的丙二腈二聚体的芳基(杂基)亚甲基衍生物的杂环化合成 4-氨基-2-氯-6-芳基吡啶-3,5-二甲腈系列的新型高效荧光染料。还研究了溶剂致变色行为和取代基对光谱发光特性的影响。尽管斯托克斯位移值很大,但仍观察到强溶剂致变色和高达 0.92 的高相对荧光量子产率。