反应 #114259
相关文献 (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US09434711B2
反应条件: temp:136.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a hot solution (136° C.) of PPA (8.2 g) in chlorobenzene (50 mL) is added a solution of compound 563-C (4.34 g; 22.4 mmol) in chlorobenzene (35 mL). The reaction was stirred at 136° C. for 18 h, cooled to ambient temperature, diluted with EtOAc, quenched with H2O, and the EtOAc layer was washed with H2O, brine, dried over Na2SO4, filtered and the solvent evaporated under reduced pressure. The crude residue was purified by flash column chromatography (SiO2), eluting with a heptane-EtOAc gradient to afford compound 563-D as an oil. 1H-NMR (DMSO-d6): δ 1.31-1.33 (d, 6H), 3.26-3.31 (m, 1H), 7.33-7.43 (m, 2H), 7.83-7.85 (m, 1H), 7.95-7.97 (m, 1H); MS: m/z 328.0 (MH+). cooled to ambient temperature quenched with H2O the EtOAc layer was washed with H2O, brine dried over Na2SO4 filtered the solvent evaporated under reduced pressure The crude residue was purified by flash column chromatography (SiO2) eluting with a heptane-EtOAc gradient to afford compound 563-D as an oil
来源 ID: ord-7a919d75d8014fdc879a29588e3a108d