FIELD: organic chemistry. SUBSTANCE: product: derivatives of N-phenylpyrazole that is synthesized by the known methods. Reagent 1: 2,4-dichloro-4-trifluoromethylphenylhydrazine. Reagent 2: 2-chloro-1,1-dicyano-2-trifluoromethylethylene. Reaction conditions: in solution of anhydrous diethyl ether at 0 C. EFFECT: improved method of synthesis. 4 cl, 4 tbl
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