ENANTIOMERICALLY PURE 2,4-DISUBSTITUTED 2-(2,6-DIFLUOROPHENYL)-4-(4'-TRIFLUOROMETHYLBIPHENYL-4-YL)-4,5-DIHYDROOXAZ OL, METHOD FOR ITS PREPARING, PESTICIDE COMPOSITION AND METHOD FOR ITS PREPARING, METHOD FOR CONTROL PESTS, MATERIAL FOR PLANTS BREEDING AND COMPOSITION FOR KILLING ECTOPARASITES AND ENDOPARASITES Russian patent published in 2004 - IPC

FIELD: organic chemistry, insecticides, agriculture.

SUBSTANCE: invention relates to enantiomer of the formula (I): in free form or as salt that is characterized by negative optical rotation α_D (Na_D, 589 nm) in methanol. Invention relates also to a method for preparing enantiomers of the formula (I), each in free form or as salt, wherein a mixture of enantiomers of the formula (I) in free form or as salt, respectively, are separated by chromatography on columns with chiral stationary phase using organic solvents or mixtures of solvents. The required enantiomer is isolated and free enantiomer of the formula (I) is converted to salt by indicated method, or salt of enantiomer of the formula (I) prepared by indicated method is converted to free compound of the formula (I) or to another salt. Invention relates also to a pesticide composition comprising practically pure enantiomer of the formula (I) as an active substance in free form or in form of agrochemically acceptable salt and adjuvant. Invention relates also to a method for control pests that involves treatment of pests or places of their residence with pesticide composition. Invention relates also to a method for preparing pesticide that comprises at least one adjuvant and involves through mixing and/or crushing an active substance with adjuvant(s). Invention relates also to the composition used for killing ectoparasites or endoparasites on humans or animals and comprising practically pure enantiomer of the formula (I) and physiologically acceptable adjuvant. Invention provides preparing the new enantiomer.

EFFECT: improved preparing method, valuable biological properties of enantiomer.

10 cl, 2 tbl, 36 ex