2-chloro-4-fluoro-5-[4-(hydroxymethyl)-1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]benzoic acid, 1-methylethyl ester 、
二乙胺基三氟化硫 在
ice water 、 Brine 、
magnesium sulfate 作用下,
以
二氯甲烷 为溶剂,
反应 16.0h,
以the concd in vacuo to give 2-chloro-4-fluoro-5-[4-(fluoromethyl)-1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]benzoic acid, 1-methylethyl ester as a tan solid的产率得到2-chloro-4-fluoro-5-[4-(fluoromethyl)-1-methyl-5-(trifluoromethyl)-1H-pyrazol-3-yl]benzoic acid, 1-methylethyl ester