Formic Acid → 4-(4-Cyanophenyl)-2-(3,5-difluoro-4-triisopropylsilanyloxybenzyl)butanoic acid

Participants

Reaction Conditions

Reaction Steps

4720 mg (7.72 mmol) of diallyl 2-[2-(4-cyanophenyl)ethyl]-2-(3,5-difluoro-4-triisopropylsilanyloxybenzyl)malonate, 34.6 mg (0.15 mmol) of palladium(II) acetate and 141.6 mg (0.54 mmol) of triphenylphosphine are stirred in 180 ml of dioxane under argon. Then a solution of 2576 mg (25.60 mmol) of triethylamine and 887.7 mg (19.29 mmol) of formic acid in 90 ml of dioxane is added dropwise, and the mixture is heated at 100° C. for 2 h. The cooled mixture is concentrated and the crude product is chromatographed on silica gel (mobile phase: cyclohexane/ethyl acetate 9:1→2:1→1:1). 3682 mg (97.9% of theory) of the title compound are obtained

Provenance & Evidence