Ammonium Chloride → HCID 57704163, compound

Participants

Reaction Conditions

Reaction Steps

Under an argon atmosphere, to a solution of ethyl diethoxyacetate (1.80 mL, 10.1 mmol) in THF (20 mL) was added slowly a THF solution of (92) prepared above at −78° C. After stirring at −78° C. for 3 hours, to this was added 20% aqueous solution of ammonium chloride (10 mL) and the product was extracted with ethyl acetate (×3). The organic layer was sequentially washed with water (×1) and saturated brine (×1), and dried over anhydrous sodium sulfate. After filtration, the mixture was concentrated under reduced pressure and the residue was purified by silica gel flash column chromatography (n-hexane/ethyl acetate═19/1) to give 1,1-diethoxy-3-phenylbutan-2-one (93) as a colorless oily substance (330 mg, 1.37 mmol, 13.7%).

Provenance & Evidence