FIELD: chemistry.
SUBSTANCE: invention relates to new photosensitive organic systems based on chromone, designed for use in different photocontrolled devices in photonics. Description is given of new substituted or unsubstituted derivatives of 2-furyl-3-acetylchromones, which have photo-induced fluorescence. The method of producing the said compounds involves acylation of 2-hydroxyacetophenone or its corresponding derivative with acyl chloride with subsequent treatment of the reaction product with potassium tret-butoxide. The formed derivative of β-diketone is subjected to crotonic condensation with aldehyde at low temperature from (-)10 to 15°C and then oxidation with selenium dioxide. Described also is a photosensitive polymer material with photo-induced fluorescence based on the said chromone derivatives, production of the said material and use in photosensitive recording medium for three-dimensional archival optical memory.
EFFECT: use of proposed chromone derivatives in a polymer layer provide for irreversible photocontrol of their luminescent properties and rectify the problem of mismatch of absorption bands of photosensitive materials with radiation of semiconductor lasers due to bathochromic shift of absorption bands of photosensitive materials by 10 to 50 nm.
6 cl, 2 dwg, 2 tbl, 12 ex
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