FIELD: chemistry.
SUBSTANCE: invention relates to organic chemistry and chemistry of materials namely to new type of compounds-biscrowncontaining distirilbenzenes of general formula I, in which A-benzene fragment of formula II or III:
,
where n = 0, 1, as well as to method of producing compounds of formula I, consisting in that bisphosphonates of general formula (IV), in which A has said values, R - lower alkyl, reacts with formyl derivatives of benzo-crown ethers of general formula V, where n = 0, 1, and process is carried out in organic solvent or mixture of organic solvent with water.
EFFECT: compounds of formula I and materials, based thereon, can be used in optical chemical sensors for fluorescent detection of cations of alkali, alkali-earth metals and ammonium, for example for determining trace amounts of said ions in biological fluids, in industrial waters and effluents.
3 cl, 2 dwg, 4 ex
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