反应详情

温度

117.5 °C

A solution of 2,6-dibromopyridine (7.1 g, 30.0 mmol) in NMP (16 mL) was mixed with a mixture of (3-fluorophenyl)methanamine (4.13 g, 33.0 mmol) and Huenig's Base (5.76 mL, 33.0 mmol). The resulting mixture was stirred under argon at 115-120° C. for about 168 hr. The mixture was then cooled to ambient temperature and diluted with EtOAc (250 mL). The organic layer was separated, washed with saturated aqueous sodium bicarbonate (2×), water (2×), brine (1×), dried over sodium sulfate, filtered, and concentrated in vacuo to yield a crude material. The crude material was purified by column chromatography [SiO2, 120 g, EtOAc/hexane=0/100 to 20/80] providing 6-bromo-N-(3-fluorobenzyl)pyridin-2-amine (7.11 g) as an off-white solid. LCMS (m/z): 281.1/283.1 [M+H]+; Retention time=1.03 min.

1. temperatureThe mixture was then cooled to ambient temperature
2. customThe organic layer was separated
3. washwashed with saturated aqueous sodium bicarbonate (2×), water (2×), brine (1×)
4. dry with materialdried over sodium sulfate
5. filtrationfiltered
6. concentrationconcentrated in vacuo
7. customto yield a crude material
8. customThe crude material was purified by column chromatography [SiO2, 120 g, EtOAc/hexane=0/100 to 20/80]