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Abstract <p>2-Amino-6-chloro-4-[4-(dimethylamino)phenyl]pyridine-3,5-dicarbonitrile was synthesized in three steps starting from <i>N</i>,<i>N</i>-dimethylaniline, and its reactions with primary and secondary amines afforded 6-alkyl­amino-2-amino-4-[4-(dimethylamino)phenyl]pyridine-3,5-dicarbonitriles. The latter showed fluorescence in solution with an emission maximum in the range of λ 432–473 nm and a quantum yield of up to 29.5%, as well as solid-state fluorescence with a maximum in the range of λ 446–472 nm.</p>

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Synthesis and Optical Properties of 6-Alkylamino-2-amino-4-[(4-(dimethylamino)phenyl]pyridine-3,5-dicarbonitriles

  • 期刊论文

  • 发表日期：

    2025年4月1日

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  • E. N. Ramskaya,
  • A. Yu. Alekseeva,
  • S. V. Zhitar,
  • N. N. Yashchenko,
  • E. G. Zinovieva,
  • I. N. Bardasov

摘要

Abstract

2-Amino-6-chloro-4-[4-(dimethylamino)phenyl]pyridine-3,5-dicarbonitrile was synthesized in three steps starting from N,N-dimethylaniline, and its reactions with primary and secondary amines afforded 6-alkyl­amino-2-amino-4-[4-(dimethylamino)phenyl]pyridine-3,5-dicarbonitriles. The latter showed fluorescence in solution with an emission maximum in the range of λ 432–473 nm and a quantum yield of up to 29.5%, as well as solid-state fluorescence with a maximum in the range of λ 446–472 nm.