Synthesis and Chemosensory Properties of New Cyanosubstituted 2,2'-Bipyridine Derivatives

New 2-pyridone-based donor–acceptor dyes: the effect of the donor group position, type of π-linker and acid–base characteristics of the medium on the photophysical properties

“…1). 17 2-Pyridone-based fluorophores have established themselves as versatile compounds, finding utility as dyes, 18,19 metal sensors, 20,21 components of liquid crystalline materials, 22 and markers exhibiting fluorescence. 23 The incorporation of the 2-pyridone motif as an electron-withdrawing anchoring group in DSSCs has also been reported.…”

Simple and Efficient Synthesis of Highly Functional 2-Oxonicotino­nitriles from 2-Chloronicotinonitriles

“…Derivatives of 2-oxo-1,2-dihydropyridine-3-carbonitrile (2-oxonicotinonitrile, 3-cyanopyridone) are important representatives of heterocyclic compounds with practically important properties. These compounds have been used in many fields, including creation of organic light-emitting diodes (OLEDs), 1 dye-sensitized solar cells, 2 organometallic compounds, 3,4 organic dyes, 5 fluorescent tags for latent fingerprints (LFP) visualization, 5,6 chemosensors for cadmium(II), 7 copper(II) and nickel(II) ions, 8 nitrites, 6,9 a polaritysensitive fluorescent probe, 10 and an image-sensor colorant. 11 The tandem effect of the pyridone fragment and the carbonitrile group significantly enhances the emission properties of the molecules.…”