反应 #3679909
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08895782B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a solution of 4-(3-(3-hydroxypropyl)phenyl)-2-methylbut-3-yn-2-ol (10) (0.750 g, 3.4 mmol) in toluene (50 mL) was added powdered KOH (0.390 g, 7 mmol). The resulting mixture was heated to reflux for 45 min, concentrated under reduced pressure to 10-15 mL and diluted with EtOAc (100 mL). The solution was washed with water (2×100 mL) and brine (50 mL), dried over MgSO4 and concentrated under reduced pressure. Purification by flash chromatography gave 3-(3-ethynylphenyl)propan-1-ol (11) as a light brown oil. Yield (0.272 g, 49%): 1H NMR (400 MHz, DMSO-d6) δ 7.24-7.32 (m, 4H), 4.49 (t, J=5.2 Hz, 1H), 4.15 (s, 1H), 3.39 (dt, J=6.4, 5.6 Hz, 2H), 2.60 (t, J=7.6 Hz, 2H), 1.66-1.73 (m, 2H). The resulting mixture was heated to reflux for 45 min concentrated under reduced pressure to 10-15 mL diluted with EtOAc (100 mL) The solution was washed with water (2×100 mL) and brine (50 mL) dried over MgSO4 concentrated under reduced pressure Purification by flash chromatography
来源 ID: ord-2849f54e06814b49a089e42b9700ace0