反应详情

温度

150 °C

A mixture of 5-amino-2-(trifluoromethyl)pyridine (0.5 g, 3.0 mmol, 1.0 equiv) and 5-bromo-2-fluoropyridine (0.47 mL, 4.6 mmol, 1.5 equiv) in 2 mL 1-butanol was charged with 0.15 mL of 4.0 M HCl (in dioxane) and heated to 150° C. via microwave heating. After cooling to room temperature, the reaction mixture was partitioned between ethyl acetate and saturated bicarbonate, and the organic extracts were washed with brine and dried over sodium sulphate. Purification of the crude product by flash chromatography afforded the title compound: 1H NMR (400 MHz, CDCl3) δ 6.63 (br. s., 1H) 6.67 (d, J=9.35 Hz, 1H) 7.56 (d, J=8.59 Hz, 1H) 7.62 (dd, J=8.84, 2.53 Hz, 1H) 8.22-8.66 (m, 2H) 8.57 (d, J=2.78 Hz, 1H); (M+H)+320.0.

1. temperatureheating
2. temperatureAfter cooling to room temperature
3. customthe reaction mixture was partitioned between ethyl acetate and saturated bicarbonate
4. washthe organic extracts were washed with brine
5. dry with materialdried over sodium sulphate
6. customPurification of the crude product by flash chromatography