反应详情

温度

90 °C

A mixture of 4,6-dichloro-2-pyrazin-2-yl-5-(2,4,6-trifluorophenyl)pyrimidine (205 mg, 0.57 mmol), (1S)-2,2,2-trifluoro-1-methylethylamine hydrogen chloride (298 mg, 2 mmol), and N,N-diisopropylethylamine (258 mg, 2 mmol) in 5 mL of N,N-dimethylformamide is stirred at 90° C. in a sealed tube for 18 h. The reaction mixture is partitioned between ethyl acetate and saturated sodium chloride. The organic layer is washed with saturated sodium chloride (×3), dried over magnesium sulfate, and concentrated. The residue is chromatographed over silica gel, eluting with a gradient of 20% ethyl acetate in hexanes to 50% ethyl acetate in hexanes. Concentration provides 6-chloro-2-pyrazin-2-yl-N-[(1S)-2,2,2-trifluoro-1-methylethyl]-5-(2,4,6-trifluorophenyl)pyrimidin-4-amine as a light yellow solid (111 mg). MS: m/z 434.1 (M+H).

1. customThe reaction mixture is partitioned between ethyl acetate and saturated sodium chloride
2. washThe organic layer is washed with saturated sodium chloride (×3)
3. dry with materialdried over magnesium sulfate
4. concentrationconcentrated
5. customThe residue is chromatographed over silica gel
6. washeluting with a gradient of 20% ethyl acetate in hexanes to 50% ethyl acetate in hexanes
7. concentrationConcentration