Reacción #1005952

Ecuación de reacción

Ethyl 2-chloro-4-(trifluoromethyl)-1,3-thiazole-5-carboxylate

3-(3,4,5-trichlorophenyl)-3-(trifluoromethyl)pyrrolidine

potassium carbonate

→

title compound

Rendimiento 86.5%

ethyl 2-[3-(3,4,5-trichlorophenyl)-3-(trifluoro-methyl)pyrrolidin-1-yl]-4-(trifluoromethyl)-1,3-thiazole-5-carboxylate

Rendimiento 86.5%

Disolventes

N,N-dimethylformamide

Condiciones de reacción

Tratamiento posterior

1. 1
   TemperaturaAfter cooling
2. 2
   Extracciónextracted with ethyl acetate
3. 3
   SecadoThe organic layer was dried over magnesium sulfate
4. 4
   OtroThe solvent was evaporated off under reduced pressure
5. 5
   Otrothe residue was then purified by a silica gel chromatography

Procedimiento

Ethyl 2-chloro-4-(trifluoromethyl)-1,3-thiazole-5-carboxylate (1.4 g) [see J. Het. Chem., 22, 1621 (1985)], 3-(3,4,5-trichlorophenyl)-3-(trifluoromethyl)pyrrolidine (1.7 g), and potassium carbonate (0.8 g) were added to N,N-dimethylformamide (50 mL), followed by heating at 100° C. for five hours. After cooling, the reaction solution was poured over ice water, and then extracted with ethyl acetate. The organic layer was dried over magnesium sulfate. The solvent was evaporated off under reduced pressure, and the residue was then purified by a silica gel chromatography to obtain the title compound (2.5 g, 86%).

Fuente