Sodium Carbonate → 5-Bromo-4-chloro-6-(5-chloro-2-methoxy-phenyl)-pyrimidin-2ylamine

関与物質

反応手順

To a mixture of 2-amino-4,6-dichloro-5-bromo-pyrimidine (1.22 g, 5.0 mmol), 5-chloro-2-methoxy-phenyl boronic acid (1.03 g, 5.5 mmol), palladium (II) acetate (0.17 g, 0.75 mmol) and triphenylphosphine (0.393 g, 1.5 mmol) was added a solution of sodium carbonate (3.18 g, 30 mmol) in water (20 ml) followed by glyme (100 ml). The mixture was stirred under an argon atmosphere at room temperature for 72 hours. Filtration and concentration of the filtrate yielded a residue which was purified by flash chromatography on silica gel eluting with ethyl acetate-hexane (1:3) to provide 5-bromo-4-chloro-6-(5-chloro-2-methoxy-phenyl)-pyrimidin-2ylamine (0.40 g, 23% yield) as a beige powder.

情報源と証拠