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Potassium Carbonate → 4-[4-Acetyl-3-[2-[2-(4-acetyl-3-hydroxy-2-propylphenoxy)ethoxy]ethoxy]-2-propylphenoxy]butanoic acid ethyl ester

HRID 2164945
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 2164945
[OH:1][C:2]1[C:7]([CH2:8][CH2:9][CH3:10])=[C:6](O)[CH:5]=[CH:4][C:3]=1[C:12](=[O:14])[CH3:13].[CH2:15]([O:17][C:18](=[O:46])[CH2:19][CH2:20][CH2:21][O:22][C:23]1[CH:28]=[CH:27][C:26]([C:29](=[O:31])[CH3:30])=[C:25]([O:32][CH2:33][CH2:34][O:35][CH2:36][CH2:37][O:38]S(C)(=O)=O)[C:24]=1[CH2:43][CH2:44][CH3:45])[CH3:16].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O.CN(C)C=O>[CH2:15]([O:17][C:18](=[O:46])[CH2:19][CH2:20][CH2:21][O:22][C:23]1[CH:28]=[CH:27][C:26]([C:29](=[O:31])[CH3:30])=[C:25]([O:32][CH2:33][CH2:34][O:35][CH2:36][CH2:37][O:38][C:6]2[CH:5]=[CH:4][C:3]([C:12](=[O:14])[CH3:13])=[C:2]([OH:1])[C:7]=2[CH2:8][CH2:9][CH3:10])[C:24]=1[CH2:43][CH2:44][CH3:45])[CH3:16]
KomponentenVersuchsvorschriftAufarbeitungQuellen und NachweiseNotizen zur Reaktion

Komponenten

6

Edukt 3

HCID 11430Potassium CarbonateHCID 27751982',4'-Dihydroxy-3'-propylacetophenoneHCID 143300094-[4-Acetyl-3-[2-[2-[(methylsulfonyl)oxy]ethoxy]-ethoxy]-2-propylphenoxy]butanoic acid ethyl ester

Produkt 1

HCID 143299774-[4-Acetyl-3-[2-[2-(4-acetyl-3-hydroxy-2-propylphenoxy)ethoxy]ethoxy]-2-propylphenoxy]butanoic acid ethyl esterAusbeute 18 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 180AcetoneLösungsmittel
HCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A mixture of 1 g (0.0052 mol) of 1-(2,4-dihydroxy-3-propylphenyl)ethanone, 2.45 g (0.0052 mol) of 4-[4-acetyl-3-[2-[2-[(methylsulfonyl)oxy]ethoxy]-ethoxy]-2-propylphenoxy]butanoic acid ethyl ester and 2.6 g (0.019 mol) of anhydrous potassium carbonate in 100 ml of anhydrous acetone and 50 ml of anhydrous dimethylformamide was stirred at reflux for 19 hours. The reaction mixture was filtered and the filtrate was concentrated in vacuo to an oil which was treated with ethyl acetate and sodium chloride solution. The organic phase was washed with 1N sodium hydroxide solution and sodium chloride solution. The yellow oil obtained on concentration of the ethyl acetate was purified by column chromatography, eluting with 5% ethyl acetate-toluene to yield 0.526 g (18% yield) of 4-[4-acetyl-3-[2-[2-(4-acetyl-3-hydroxy-2-propylphenoxy)ethoxy]ethoxy]-2-propylphenoxy]butanoic acid ethyl ester as a pale yellow oil.

Aufarbeitung

  1. temperatureat reflux for 19 hours
  2. filtrationThe reaction mixture was filtered
  3. concentrationthe filtrate was concentrated in vacuo to an oil which
  4. additionwas treated with ethyl acetate and sodium chloride solution
  5. washThe organic phase was washed with 1N sodium hydroxide solution and sodium chloride solution
  6. customThe yellow oil obtained on concentration of the ethyl acetate
  7. customwas purified by column chromatography
  8. washeluting with 5% ethyl acetate-toluene

Quellen und Nachweise

ORD-Eintrag
ord-f19407219aa64dfa999948d79a483407
Quelldatensatz
uspto-grants-1985_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US04507498

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