CHELATE-FORMING DIBENZO-CONTAINING FIVE-MEMBERED CYCLIC COMPOUNDS COMPRISING TWO SYMMETRIC BETA-DICARBONYL SUBSTITUTES WITH FLUORINATED RADICALS Russian patent published in 2007 - IPC C07D307/91 C07D333/76 C07D209/90 C07C49/80 G01N21/76 

FIELD: organic chemistry, analytical chemistry.

SUBSTANCE: invention relates to synthesis of novel analytical reagents of chelate-forming type. Synthesized compounds represent chelate-forming dibenzo-containing five-membered cyclic compounds comprising two symmetric β-dicarbonyl substitutes bound covalently with fluorine-containing radicals of the general formula (1): , wherein X means -CH₂, oxygen (O), sulfur (S) atom, -NR; if X means -CH₂ then R means hydrogen atom (H); R₂ means -C(O)CH₂C(O)R_f wherein R_f means -(CF₂)_nY wherein n = 1-6, and at n = 1 Y means H, F, Cl, Br, -OCF₃, -OCH₃, -OC₃F₇, -OCF₂-CF₂-OCF₃, -C₆F₅, -C(O)OAlk wherein Alk means hydrocarbon radical; at n = 2 Y means H, F, Cl, Br, -OCF₃, -OC₃F₇, -OCF₂-CF₂-OCF₃, -C(O)OAlk; at n = 3, 5 or 6 Y means F, -C(O)OAlk; at n = 4 Y means H, F, Cl, -C(O)OAlk; if X means O, S or -NR then R means H or Alk, R₂ means H, R₁ means -C(O)CH₂C(O)R_f. Invention can be used in field of luminescent-spectral analysis, in particular, for clinical diagnosis of object of biogenic origin, and in technique field for using as extractants of heavy and rare-earth metal ions for their extraction and/or purifying from their impurities of sewage and contour waters.

EFFECT: valuable medicinal and technical properties of compounds.

1 cl, 19 dwg, 19 ex