反应详情

温度

100 °C

To a stirred solution of 2-bromo-4-(5-chloropyridin-3-yl)-3-[(trans-4-methylcyclohexyl)methyl]-3H-imidazo[4,5-c]pyridine-6-carbonitrile (Preparative Example 3.1; 3.0 g, 6.93 mmol) in 1,4-dioxane (60 mL), tert-butyldimethyl((2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)allyl)oxy)silane (3.09 g 10.39 mmol), potassium phosphate (2.94 g, 13.86 mmol), and water (6 mL) were added, and the mixture was degassed with argon for 15 minutes. PdCl2(dppf) (0.85 g, 1.04 mmol), was added, and the mixture was degassed with argon again for 5 minutes. The reaction was then heated at 100° C. for 16 h. The reaction mixture was cooled to room temperature, quenched with water (20 mL), and extracted with ethyl acetate (100 mL). The organic layer was separated, washed with brine (50 mL), dried over anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The residue was purified by column chromatography using 15% ethyl acetate/petroleum ether as eluent to yield 2-(3-{[tert-butyl(dimethyl)silyl]oxy}prop-1-en-2-yl)-4-(5-chloropyridin-3-yl)-3-[(trans-4-methylcyclohexyl)methyl]-3H-imidazo[4,5-c]pyridine-6-carbonitrile. MS ES/APCl calcd. for C29H38ClN5OSi [M+H]+ 536. found 536.

1. customthe mixture was degassed with argon for 15 minutes
2. customthe mixture was degassed with argon again for 5 minutes
3. temperatureThe reaction mixture was cooled to room temperature
4. customquenched with water (20 mL)
5. extractionextracted with ethyl acetate (100 mL)
6. customThe organic layer was separated
7. washwashed with brine (50 mL)
8. dry with materialdried over anhydrous Na2SO4
9. filtrationfiltered
10. concentrationconcentrated under reduced pressure
11. customThe residue was purified by column chromatography