反应详情

温度

90 °C

To a solution of 5-bromo-3-(2-methoxy-phenyl)-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine (1.01 g, 2.21 mmol) in a 1:1 acetonitrile/saturated aqueous NaHCO3 solution (20 mL total) was added (3-tert-butoxycarbonylphenyl)boronic acid (0.54 g, 2.43 mmol) and [1,1′-bis(diphenylphosphino)ferrocene]dichloropalladium (II), complex with dichloromethane (1:1) (0.90 g, 0.11 mmol) in a microwave vial. The vial was capped, flushed with N2, evacuated under vacuum, and subsequently heated in a microwave at 90° C. for 1800 seconds. The material was diluted with ethyl acetate and the organic layer was washed with H2O then dried over Na2SO4. The solution was adsorbed onto silica gel and purified by flash chromatography with a gradient of ethyl acetate and hexanes, affording 3-[3-(2-methoxy-phenyl)-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine-5-yl]-benzoic acid tert-butyl ester as a white solid (1.07 g, 87% yield). 1H NMR (500 MHz, CDCl3) δ 8.68 (s, 1H), 8.17 (br s, 3H), 8.09 (s, 1H), 7.99 (m, 2H), 7.71 (d, J=6.5 Hz, 1H), 7.50 (m, 2H), 7.34 (t, J=8.0 Hz, 1H), 7.32 (d. J=6.5 Hz, 2H), 7.06 (m, 2H), 3.88 (s, 3H), 2.39 (s, 3H), 1.60 (s, 9H). MS: m/e 555.1 (M+H+).

1. customThe vial was capped
2. customflushed with N2
3. customevacuated under vacuum
4. additionThe material was diluted with ethyl acetate
5. washthe organic layer was washed with H2O
6. dry with materialthen dried over Na2SO4
7. custompurified by flash chromatography with a gradient of ethyl acetate and hexanes