Hydrochloric Acid → HCID 22261661, compound

Participants

Reaction Steps

To a solution of zinc chloride (9.89 g, 72.6 mmol) in diethyl ether (150 ml) was added sodium borohydride (5.49 g, 145 mmol), and the mixture was stirred at room temperature for 30 min. The insoluble material was filtered off, and a solution of ethyl 3-(6-chloro-3-pyridyl)-3-oxo-2-((4-(trifluoromethyl)phenyl)methyl)propionate (14 g, 36.3 mmol) in diethyl ether (50 ml) was added to the filtrate. The mixture was stirred at room temperature for 30 min. 1N Hydrochloric acid was added to the reaction solution under ice-cooling to quench the reaction and water (200 ml) was added. The mixture was extracted with ethyl acetate (300 ml×2). The extract was washed with water and saturated brine, dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The residue was purified by medium pressure silica gel column chromatography (hexane:ethyl acetate=4:1) to give ethyl(2RS,3RS)-3-(6-chloro-3-pyridyl)-3-hydroxy-2-((4-(trifluoromethyl)phenyl)methyl)propionate (9.32 g, 66%) as a colorless oil.

Provenance & Evidence