FIELD: organic chemistry, chemical technology, pesticides.
SUBSTANCE: invention relates to the improved method for preparing compounds of the formula (I): 
wherein each R1 and R2 means independently halogen atom or its acid-additive salt that can be used in preparing the agricultural fungicide compound. Method involves hydrogenolysis of phenylhydrazine of the formula (II): 
wherein R1 and R2 are determined above or its acid-additive salt under reducing conditions using Raney nickel. Phenylhydrazine of the formula (II) or its acid-additive salt is prepared by reaction of compound of the formula (III) 
with hydrazine hydrate.
EFFECT: improved preparing methods.
4 cl, 6 ex
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