反应详情

温度

75 °C

To a 30 mL vial containing (E)-methyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)-1-oxidobenzo[b]thiophen-3-yl)oxy)phenyl)acrylate (200 mg, 0.43 mmol) was added THF (5 mL), triphenylphosphine (420 mg, 1.60 mmol) and TMS-Cl (0.553 mL, 4.32 mmol). The reaction was heated to 75° C. for 18 h after which time the mixture was cooled to room temperature, quenched with sat. aq. NaHCO3 and diluted with DCM. The organic phase was collected (phase separator) and concentrated in vacuo to afford the crude product which was purified by column chromatography (SiO2, 0-60% EtOAc/Heptane) to afford (E)-methyl 3-(4-((6-methoxy-2-(4-methoxyphenyl)benzo[b]thiophen-3-yl)oxy)phenyl)acrylate (110 mg, 0.25 mmol, 57% yield) as a white solid. 1H NMR (400 MHz, CDCl3) 8 ppm=7.58-7.73 (m, 3H), 7.38-7.50 (m, J=8.59 Hz, 2H), 7.28 (t, J=2.27 Hz, 2H), 6.96-7.05 (m, J=8.59 Hz, 2H), 6.85-6.96 (m, 3H), 6.32 (d, J=15.66 Hz, 1H), 3.90 (s, 3H), 3.81 (s, 3H), 3.82 (s, 3H).

1. temperaturewas cooled to room temperature
2. customquenched with sat. aq. NaHCO3
3. additiondiluted with DCM
4. customThe organic phase was collected (phase separator)
5. concentrationconcentrated in vacuo
6. customto afford the crude product which
7. customwas purified by column chromatography (SiO2, 0-60% EtOAc/Heptane)