反应 #3322391
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US09278915B2
反应条件: temp:65.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a 25 mL RB flask fitted with magnetic stirrer was charged 10 mL of methanol. To the stirred solvent was added 2-cyano-3-(4-hydroxy-phenyl)-propanoic acid (0.5 g, 2.62 mmol), followed by methanesulfonic aid (0.5 mL, 7.69 mmol). After addition, the RM was refluxed at 65° C. for 1 h. After 1 h, the solvent was evaporated, water (20 mL) was added and the organic layer was extracted with ethyl acetate (15 mL×2). The organic layer was dried over anhydrous Na2SO4 and the solvent was removed under reduced pressure. The product was obtained as brown liquid. (0.3 g, yield: 55.8%): MS (ESI, 120 eV): m/z=204.1 (M−H)+. To a 25 mL RB flask fitted with magnetic stirrer After addition the solvent was evaporated water (20 mL) was added the organic layer was extracted with ethyl acetate (15 mL×2) The organic layer was dried over anhydrous Na2SO4 the solvent was removed under reduced pressure The product was obtained as brown liquid
来源 ID: ord-f7d72caff9e245f8996988fb2ce959a6