Synthesis process of high-purity oxiconazole nitrate

The invention relates to a synthesis process of high-purity oxiconazole nitrate, and belongs to the technical field of pharmacy, thesynthesis process comprises the following steps: 1, stirring and mixing 2-chloro-1-(2, 4-dichlorophenyl) ethanone, imidazole and absolute methanol, carrying out reflux reaction, adding hydrogen peroxide, ammonia monohydrate and a modified catalyst, continuously reacting, and purifying, and obtaining (Z)-2 '-(1H-imidazole-1-yl)-2, 4-dichloroacetophenone oxime with relatively high purity; 2, (Z)-2 '-(1H-imidazole-1-yl)-2, 4-dichloroacetophenone oxime and 2, 4-dichlorobenzyl chloride are subjected to a substitution reaction, high-purity oxiconazole nitrate is obtained through suction filtration, washing, drying and recrystallization, the traditional synthesis process is analyzed, the synthesis method and the mode of adding a modified catalyst are changed, generation of impurities is reduced, the purity of products in production links is improved, the synthesis steps are reduced, the