4'-Hydroxypropiophenone → Ethyl 2-(4-propionylphenoxy)acetate

Reaktionsgleichung

[OH:1][C:2]1[CH:7]=[CH:6][C:5]([C:8](=[O:11])[CH2:9][CH3:10])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[CH3:18][CH2:19][O:20][C:21]([CH2:23]Br)=[O:22]>CN(C=O)C>[C:8]([C:5]1[CH:4]=[CH:3][C:2]([O:1][CH2:23][C:21]([O:20][CH2:19][CH3:18])=[O:22])=[CH:7][CH:6]=1)(=[O:11])[CH2:9][CH3:10]

Komponenten

Versuchsvorschrift

To a solution of 1-(4-hydroxyphenyl)propan-1-one (33 g, 0.2200 moles) in DMF (165 mL), potassium carbonate (60.7 gm, 0.4400 moles) and ethyl bromo acetate (40.6 gm, 0.2420 moles) were added and the reaction mixture was srirred at 50° C. for 3 hours. The reaction mixture was poured into ice cold water and extracted with ethyl acetate. The combined ethyl acetate extract was washed with water & brine, dried over sodium sulphate and evaporated under reduced pressure to yield 49 gm (94%) of product as thick liquid.