FIELD: organic chemistry. SUBSTANCE: invention proposes a method of synthesis of fluorine-containing $$$-diketones by condensation of fluorocarboxylic acid esters with methylketones using lithium hydride as a condensing agent. Saturated hydrocarbons (n-hexane, n-pentane, petroleum ether) were used as a solvent and formic and oxalic acids were used as neutralizing agent. Fluorine-containing $$$-diketones were used as analytical reagents, catalysts, bioactive substances, chelating agents for metal transport and as syntons for synthesis of fluoro-containing aza- and thio-analogs, $$$-hydroxyketones, aziridineketones, pyrazoles, flavones, isoxazoles, diazepines. EFFECT: improved method of synthesis. 1 tbl
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