反应详情

温度

80 °C

5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (37, 0.424 g, 1.74 mmol), 5-bromo-pyridine-2-carboxylic acid ethylamide (36, 0.159 g, 0.694 mmol), and tetrakis(triphenylphosphine)palladium(0) (0.016 g, 0.014 mmol) were mixed in 1.00 M potassium carbonate in water (4.2 mL, 4.2 mmol). The reaction mixture was heated at 80° C. overnight. The two layers were separated, and the aqueous layer was extracted with ethyl acetate. The combined organic layers were washed with brine, dried over anhydrous sodium sulfate and filtered. The filtrate was concentrated under vacuum. The crude material was purified by silica gel flash chromatography. The appropriate fractions were combined and the solvents removed under vacuum to provide the desired compound (38, 200 mg). MS (ESI) [M+H+]+=267.2.

1. customThe two layers were separated
2. extractionthe aqueous layer was extracted with ethyl acetate
3. washThe combined organic layers were washed with brine
4. dry with materialdried over anhydrous sodium sulfate
5. filtrationfiltered
6. concentrationThe filtrate was concentrated under vacuum
7. customThe crude material was purified by silica gel flash chromatography
8. customthe solvents removed under vacuum