FIELD: organic chemistry, insecticides.
SUBSTANCE: invention relates to compounds of the formula (I): 
wherein Ar1 and Ar2 mean independently unsubstituted phenyl or mono- or multisubstituted phenyl wherein its substitutes can involve values independent of one another and chosen from group comprising halogen atom, unsubstituted (C1-C6)-alkyl, halogen-(C1-C6)-alkyl and unsubstituted phenoxy-group; R4, R5, R6, R10 and R12 mean hydrogen atom or unsubstituted (C1-C6)-alkyl independently of one another; W means oxygen atom (O); X means O or -NR12; a means 1; b means 0, and c means 0 or 1. Also, invention relates to a method for synthesis of compounds of the formula (I). Method involves interaction of compound of the formula (IV): 
with compound of the formula (III): 
in the presence if necessary of basic catalyst. Synthesized intermediate compound of the formula (V): 
is subjected for interaction with compound of the formula (VI): 
in the optional presence of basic catalyst. Except for, invention comprises composition used for control of nematodes, mites, parasitic mites and insects that contains at least one compound of the formula (I) as an active substance and carriers and/or dispersing agents also, to using compounds of the formula (I) used for control of indicated parasites, to a method for control of parasites. Method involves effect on parasites with the effective dose of at least one compound of the formula (I), using compound of the formula (I) in a method for control of parasites and for preparing pharmaceutical composition with the direct effect against nematodes, mites, parasitic mites and insects in warm-blooded animals.
EFFECT: improved method of synthesis, valuable insecticide properties of compounds and composition.
8 cl, 1 tbl, 7 ex
