A kind of synthesizing pyrazole kresoxim-methyl intermediate 1-(4- chlorphenyl) -3- pyrazoles alcohol method

The invention discloses a kind of synthesizing pyrazole kresoxim-methyl intermediate 1-(4- chlorphenyls) method of -3- pyrazoles alcohol, p-hydrochloride is made after bromochlorobenzene, hydrazine hydrate as reaction raw materials, being added phase transfer catalyst, solvent, catalyst reaction；The toluene solution of intermediate pyrazole ketone is made in the presence of toluene with above-mentioned p-hydrochloride and alkali, sodium alkoxide, acrylate reactions；After above-mentioned toluene solution is removed toluene, after alkali, hydrogen peroxide oxidation is added, 1-(4- chlorphenyl is made) -3- pyrazoles alcohol.Synthetic method of the present invention prepares p-hydrochloride and the wastewater flow rate generated in synthesis process can be greatly reduced using to bromochlorobenzene and hydration hydrazine reaction, avoid the use of sulfite reducing agent and a large amount of acid, avoid the generation of the harmful substance in entire technical process, realize green production, 1-(4- chlorphenyl can be achieved) -3- pyrazoles alcohol HPLC content >=98%, yield >=90%.