反应详情

温度

0 °C

2-[4-Isopropyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-propionaldehyde (4.05 g, 12.5 mmol) is dissolved into denatured ethanol (60 mL) at room temperature then cooled to 0° C. in an ice bath. Sodium borohydride (0.467 g, 12.5 mmol) is then carefully added in small portions. The reaction is allowed to warm slowly to room temperature and is monitored by TLC. Upon complete consumption of starting material, the reaction is carefully quenched with water and diluted with ethyl acetate. The ethanol is removed and the residue is extracted with ethyl acetate, washed, dried, and concentrated. The 2-[4-Isopropyl-2-(4-trifluoromethyl-phenyl)-thiazol-5-yl]-propan-1-ol (4.0 g, 12.14 mmol), 97%, is obtained in pure form after flash column chromatography.

1. temperatureto warm slowly to room temperature
2. customUpon complete consumption of starting material
3. customthe reaction is carefully quenched with water
4. additiondiluted with ethyl acetate
5. customThe ethanol is removed
6. extractionthe residue is extracted with ethyl acetate
7. washwashed
8. customdried
9. concentrationconcentrated