Methods were developed for the synthesis of 1-aryl-9H-thieno [3,4-b]chromon-9-ones based on the reaction of bromo and dibromo derivatives of 2-methyl-4H-chromon-4-one with thioacetamide in DMF. The thienochromones were modified and their fluorescence properties were studied. Bis(thienochromones) were synthesized by the reaction of thienochromones with ketoaldehydes.

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Spectral-kinetic studies have been analyzed for a number of photochromic and irreversible lightsensitive heterocyclic compounds and evaluated as components of advanced information nanotechnologies, in recording media for working-and archival-three-dimensional (3D) optical memory and for photocontrolled metal chemosensors.

The synthesis and photochemical study of 3-acetyl-2(2'-furyl)chromone derivatives are described, which are of interest for the creation of photo-induced irreversible luminescent media for one-time superdense recording on a multilayer carrier. New thiophene-containing 3-acetyl-2(2'-furyl)chromone derivatives are prepared with examples of their chemical modification and their photochemical properties studied, including spectral data for the individual substances and those incorporated in polymeric matrices. These show prospects as light-sensitive components of recording media for archival three-dimensional optical memory.