| 摘要 |
FIELD: organic chemistry, chemical technology, pesticides. ^ SUBSTANCE: invention describes a method for preparing a compound of the formula (I): in free form or as a salt wherein Q means -CH or nitrogen atom (N); Y means -NO2 or -CN; Z means -CHR3, oxygen atom (O), -NR3 or sulfur atom (S); R1 and R2 mean, for example, (C1-C8)-alkyl or form in common an alkylene bridge; R3 means hydrogen atom or free (C1-C12)-alkyl or substituted with radical R wherein R4 means unsubstituted or substituted aryl or heteroaryl group. In proposed method by variant a) compound of the formula (II): wherein X means the removing group is subjected for interaction with a chlorinating agent to form compound of the formula (III): in free form or as a salt, and by variant b) compound of the formula (III) prepared by such method is subjected for interaction with compound of the formula (IV): wherein R1, R2, Y, Z and Q have values given for the formula (I), and the chlorination process at the stage a) is carried out in the continuous regimen. Also, invention describes a method for preparing compound of the formula (III) in the correspondence of abovementioned stage a), and using compounds of formulae (II), (III) and (IV) in a method described above. Technical result of the invention involves improving method for preparing compound of the formula (I) used as pesticides. ^ EFFECT: improved preparing method. ^ 5 cl, 5 ex |
