Potassium Carbonate → 1,3-Dichloro-5-(3,3,3-trifluoroprop-1-en-2-yl)benzene

Participants

Reaction Steps

In a solution of 25.0 g of 3,5-dichlorophenyl boric acid in 200 mL of tetrahydrofuran and 100 mL of water, 27.5 g of 2-bromo-3,3,3-trifluoropropene, 38.0 g of potassium carbonate and 1.84 g of dichlorobis(triphenylphosphine) palladium (II) were added, and stirred under reflux with heat for 3 hours. After the completion of the reaction, the reaction mixture was left and cooled to room temperature, 500 mL of ice water was added, and extracted with ethyl acetate (500 mL×1). The organic phase was washed with water, dried over anhydrous sodium sulfate, the solvent was distilled off under reduced pressure. The residue was purified with silica gel column chromatography that was eluted with hexane to obtain 25.7 g of the aimed product as colorless oily substance.

Provenance & Evidence