反应 #3162722
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US09192607B2
反应条件: temp:150.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a solution of Intermediate 24E (4.6 g) in ethylene glycol (50 mL) was added 50% aqueous KOH solution (23 mL) and the reaction was heated at 150° C. for 3 days. The reaction mixture was cooled, diluted with H2O, extracted with EtOAc twice. The combined organics were extracted with 1.5 N HCl solution, the aqueous layer was basified with 10% NaOH solution, extracted with EtOAc twice and the combined organics were washed with H2O, brine, dried over Na2SO4, filtered and concentrated to give Intermediate 24 (1.5 g, 39.4%) as a brown liquid. MS (ESI) m/z: 242.2 (M+H)+. The reaction mixture was cooled extracted with EtOAc twice The combined organics were extracted with 1.5 N HCl solution extracted with EtOAc twice the combined organics were washed with H2O, brine dried over Na2SO4 filtered concentrated
来源 ID: ord-01f7f50f506d4f88ab4124cd93c13b33