反应 #3408313
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08722720B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a stirred solution of the 2-iodophenol (220.0 mg, 1.0 mmol), the 2-(2-(trifluoromethyl)phenyl)ethanol (228.0 mg, 1.2 mmol), and triphenyl phosphine (314.0 mg, 1.2 mmol) in anhydrous THF (5 mL) at 0° C. was added DEAD (40% in toluene, 1.20 mmol, 0.35 mL) dropwise. The yellow solution was allowed to warm to room temperature and stirring was continued overnite. After evaporating the solvent under reduced pressure the crude residue was dissolved in DCM (15 mL). The organic layer was washed with 10% NaOH (2×10 mL), water and brine. The organic phase was dried (Na2SO4), filtered and evaporated under reduced pressure. The crude residue was purified by column chromatography on silica gel using hexanes/EtOAc as the eluent. The compound was isolated in 56% yield as a white solid. 1H NMR: 3.17 (t, 2H, J=6.8 Hz), 4.22 (t, 2H, J=6.8 Hz), 6.90-7.10 (m, 4H), 7.15-7.23 (m 1H), 7.30-7.45 (m, 2H), 7.74 (dd, 1H, J=7.6, 1.6 Hz). After evaporating the solvent under reduced pressure the crude residue was dissolved in DCM (15 mL) The organic layer was washed with 10% NaOH (2×10 mL), water and brine The organic phase was dried (Na2SO4) filtered evaporated under reduced pressure The crude residue was purified by column chromatography on silica gel The compound was isolated in 56% yield as a white solid
来源 ID: ord-877d5f5a1a9a468c93bfb2ec00ff8b39