反应详情

温度

110 °C

To a solution of methyl 2-(4-bromophenyl)propanoate, 7-e, (500 mg, 2.06 mmol), diethylphosphite (994 mg, 7.20 mmol) and triethylamine (681 mg, 6.7 mmol) in toluene (5 mL) was added [1,1′-bis(diphenylphosphino) ferrocene]dicholoropalladium (54 mg). The resulting reaction mixture was heated at 110° C. under nitrogen overnight. The cooled reaction mixture was filtrated (washed with DCM, 3×10 mL), and the filtrate was concentrated to afford the crude product which was purified by column chromatography to give the title compound, 7-f, as yellow brown oil (500 mg, 99%). 1H NMR (300 MHz, CDCl3) δ1.30-1.39 (m, 6H), 1.51 (d, J=7.2 Hz, 3H), 3.67 (s, 3H), 3.77 (q, J=7.2 Hz, 1H), 4.05-4.20 (m, 4H), 7.37-7.41 (m, 2H), 7.72-7.79 (m, 2H). LC-MS (M+H)+ 301.

1. customThe resulting reaction mixture
2. customThe cooled reaction mixture
3. filtrationwas filtrated
4. wash(washed with DCM, 3×10 mL)
5. concentrationthe filtrate was concentrated
6. customto afford the crude product which
7. customwas purified by column chromatography