反应 #1005953

反应方程式

hydrochloric acid

sodium hydroxide

Ethyl 2-[3-(3,4,5-trichlorophenyl)-3-(trifluoromethyl)pyrrolidin-1-yl]-4-(tri-fluoromethyl)-1,3-thiazole-5-carboxylate

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title compound

收率 99.0%

2-[3-(3,4,5-trichlorophenyl)-3-(trifluoromethyl)-pyrrolidin-1-yl]-4-(trifluoromethyl)-1,3-thiazole-5-carboxylic acid

收率 99.0%

溶剂

1,4-dioxane

反应条件

后处理

1. 1
   温度After cooling
2. 2
   萃取extracted with ethyl acetate
3. 3
   干燥The organic layer was dried over magnesium sulfate
4. 4
   其他The solvent was evaporated off under reduced pressure

实验过程

Ethyl 2-[3-(3,4,5-trichlorophenyl)-3-(trifluoromethyl)pyrrolidin-1-yl]-4-(tri-fluoromethyl)-1,3-thiazole-5-carboxylate (2.4 g) was added to a mixture solution comprising 1,4-dioxane (40 mL) and an aqueous solution (40 mL) of sodium hydroxide (2.0 g), followed by heating at 80° C. for ten hours. After cooling, the reaction solution was poured over ice water, acidified by adding concentrated hydrochloric acid, and then extracted with ethyl acetate. The organic layer was dried over magnesium sulfate. The solvent was evaporated off under reduced pressure to obtain the title compound (2.25 g, 99%).

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