Hydrochloric Acid → HCID 117759790, compound

Participants

Reaction Steps

Under an argon atmosphere, to a solution of (5-(4-fluoro-3-methoxybenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione (3.00 g) in THF (20 mL) was added dropwise a 1.0 M solution of cyclopropylmagnesium bromide in THF (53.5 mL) at 0° C., and the mixture was stirred for 1 hr. 3N Hydrochloric acid (30 mL) was added to the reaction mixture, and the mixture was stirred for 15 min. The reaction mixture was neutralized with saturated aqueous sodium hydrogen carbonate solution, and extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure to give the title compound (2.40 g) as a yellow solid. This compound was used for the next step without further purification.

Provenance & Evidence