反应详情

To a solution of 5-(4,4,5,5,-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrrolo[2,3-b]pyridine (43, 1.1 g, 4.3 mmol) in tetrahydrofuran (40 mL) was added 1-bromo-4-(2-methoxy-ethoxy)-benzene (42, 1.50 g, 6.49 mmol) and tetrakis(triphenylphosphine)palladium (0) (0.25 g, 0.21 mmol). The reaction mixture was stirred with potassium carbonate solution (10 mL, 1.04M) and warmed to reflux overnight. The biphasic reaction mixture was diluted with ethyl acetate (50 mL) and saturated sodium carbonate solution (20 mL). The organic layer was separated, washed with brine, dried over magnesium sulfate and purified by silica gel column chromatography (50-100 ethyl acetate in hexanes) to give the desired compound as a colorless solid (44, 782 mg, 67%). MS (ESI) [M+H+]+=267.4.

1. temperaturewarmed
2. temperatureto reflux overnight
3. customThe biphasic reaction mixture
4. customThe organic layer was separated
5. washwashed with brine
6. dry with materialdried over magnesium sulfate
7. custompurified by silica gel column chromatography (50-100 ethyl acetate in hexanes)