METHOD OF PREPARING HALOGENATED COMPOUNDS Russian patent published in 1998 - IPC

FIELD: agriculture. SUBSTANCE: present invention describes method of preparing halogenated compounds of formula: wherein X, Y and Z are halogen, R is alkyl, halogen, haloalkyl or aryl, and R¹ is hydroxy, halogen, alkoxy, alkyl or haloalkyl, or pyrethroid alcohol residue. Compound of formula: is reacted with sulphonyl halide of formula: RCY(Z) S O₂X .. The claimed method makes it possible to avoid using volalite halocarbons to prepare valuable intermediate products for insecticides. EFFECT: more efficient preparation method. 10 cl, 9 ex, 1 dwg