Dimethylformamide → HCID 13482750, compound
Reaction equation
[K].[CH3:2][C:3]([C:5]1[CH:6]=[CH:7][C:8]([OH:11])=[CH:9][CH:10]=1)=[O:4].[C:12]([O:15][CH2:16][CH3:17])(=[O:14])[CH3:13].[CH3:18]N(C=O)C>>[C:3]([C:5]1[CH:10]=[CH:9][C:8]([O:11][CH:13]([CH3:18])[C:12]([O:15][CH2:16][CH3:17])=[O:14])=[CH:7][CH:6]=1)(=[O:4])[CH3:2]Participants
5
Conditions
- Temperature
- 80 °C
Procedure
A solution of the potassium salt of 4-hydroxyacetophenone (17.6 g, 0.1 mol) in DMF (50 mL) is added to a solution of ethyl L-2-[(methylsulfonyl)oxy]propanoate (21.5 g, 0.11 mol) in DMF (40 mL) over 15 minutes at 80° C. and stirred at 80° C. for 2 hours. to the reaction is added ethyl acetate (100 mL) and filtered. The filtrate is concentrated under reduced pressure whereupon the product is analyzed by GLC. The product is dissolved in ethyl acetate (250 mL) and extracted with saturated sodium bicarbonate solution (2×100 mL) and water (2×60 mL). The organic phase is dried and concentrated to give ethyl 2-(4-acetylphenoxy)propanoate (20.2 g).
Workup
- filtrationfiltered
- concentrationThe filtrate is concentrated under reduced pressure whereupon the product
- dissolutionThe product is dissolved in ethyl acetate (250 mL)
- extractionextracted with saturated sodium bicarbonate solution (2×100 mL) and water (2×60 mL)
- customThe organic phase is dried
- concentrationconcentrated
Sources & evidence
- ORD record
- ord-1944e8bd80ef40b7b61963e5fdecf7c6
- Source dataset
- uspto-grants-1990_06
- Patent number
- US04935522
Reaction notes
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