Sodium Carbonate → HCID 54912257, compound

Participants

Reaction Conditions

Reaction Steps

Under argon, a mixture of 9.0 g (37.9 mmol) of 4-fluoro-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline, 10.25 g (45.5 mmol) of 4-bromobenzotrifluoride, 1.39 g (1.89 mmol) of 1,1′-bis(diphenyl-phosphino)ferrocenepalladium(II) chloride and 20.11 g (189 mmol) of sodium carbonate in 200 mL of DMSO and 70 mL of water is stirred at 90° C. overnight. After the reaction has ended, the mixture is cooled to room temperature, water is added and the mixture is extracted with ethyl acetate. The organic phase is once more washed with water, dried with sodium sulfate and concentrated under reduced pressure. The crude product is purified by column chromatography (mobile phase: cyclohexane/ethyl acetate gradient). This gives 5.28 g (53% of theory) of 5-fluoro-4′-(trifluoromethyl)biphenyl-2-amine having a content of 97% according to LC-MS and a logP (acidic) of 3.52.

Provenance & Evidence