Water → Ethyl 3-oxo-3-(4-pyridyl)-2-((4-(trifluoromethyl)phenyl)methyl)propionate

Participants

Reaction Steps

To a solution of ethyl 3-oxo-3-(4-pyridyl)propionate (13.9 g, 72.0 mmol) in 1,2-dimethoxyethane (100 ml) was added sodium hydride (60% in oil, 2.88 g, 72.0 mmol) under ice-cooling, and the mixture was stirred at room temperature for 30 min. To the reaction solution was dropwise added a solution of 4-trifluoromethylbenzyl bromide (17.2 g, 72.0 mmol) in 1,2-dimethoxyethane (50 ml), and the mixture was stirred at room temperature for 4 hrs. The reaction solution was poured into water (300 ml), and extracted with ethyl acetate (500 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 silica gel column chromatography (hexane:ethyl acetate=4:1) and recrystallized from ethyl acetate-hexane to give ethyl 3-oxo-3-(4-pyridyl)-2-((4-(trifluoromethyl)phenyl)methyl)propionate (10.9 g, 43%).

Provenance & Evidence