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Each compound has different characteristics, and only by selecting the characteristics of the compound suitable for a specific situation can the compound be applied on a large scale. 176969-34-9, name is 3-(Difluoromethyl)-1-methyl-1H-pyrazole-4-carboxylic acid, This compound has unique chemical properties. The synthetic route is as follows., 176969-34-9
At room temperature under a nitrogen atmosphere, 14.0 parts of 1-methyl-3-difluoromethylpyrazole-4-carboxylic acid and 35.1 parts of xylene were mixed. The obtained mixture was heated at 100 C. To the obtained mixture was added dropwise 11.2 parts of thionyl chloride over 5 hours. The obtained mixture was stirred at 100 C. for 15 hours and then cooled to 40 C. Thionyl chloride and xylene were evaporated from the obtained reaction mixture under reduced pressure to obtain brown 1-methyl-3-difluoromethylpyrazole-4-carboxylic acid chloride.
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