反应详情

温度

80 °C

Ethyl {(1S)-5-[3-(4-bromo-2-methoxyphenoxy)propoxy]-2,3-dihydro-1H-inden-1-yl}acetate (140 mg, 0.3 mmol) (Example 97), 3-thiopheneboronic acid (81.2 mg, 0.63 mmol), PdCl2(dppf).CH2Cl2 (90.5 mg, 0.07 mmol), and NaHCO3 (76.1 mg, 0.91 mmol) were suspended in DME (10 mL) and water (1 mL). The reaction mixture was degassed under vacuum for 3 min, and then purged with argon, after which the reaction mixture was agitated by orbital shaker at 80° C. for 24 h, and then at rt for 24 h. The reaction mixture was filtered through a pad of silica gel, and the filtrate was concentrated under reduced pressure. The crude material was purified by silica gel flash chromatography (EtOAc/hexanes (v/v)=1:9 to 1:1 gradient) to give 83 mg (59%) of the title compound as a yellow oil. 1H NMR (400 MHz, acetone-d6): δ 7.62-7.71 (m, 1H), 7.52-7.46 (m, 2H), 7.29 (d, 1H), 7.23-7.19 (m, 1H), 7.11-7.09 (m, 1H), 7.02-6.99 (m, 1H), 6.83-6.82 (m, 1H), 6.76-6.73 (m, 1H), 4.22-4.09 (m, 6H), 3.87 (s, 3H), 3.44 (m, 1H), 2.87-2.66 (m, 3H), 2.40-2.18 (m, 4H), 1.74-1.70 (m, 1H), 1.25 (t, 3H).

1. customThe reaction mixture was degassed under vacuum for 3 min
2. custompurged with argon
3. waitat rt for 24 h
4. filtrationThe reaction mixture was filtered through a pad of silica gel
5. concentrationthe filtrate was concentrated under reduced pressure
6. customThe crude material was purified by silica gel flash chromatography (EtOAc/hexanes (v/v)=1:9 to 1:1 gradient)