Potassium Iodide → [4-Acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenoxy)propoxy]-2-propylphenoxy]acetic acid ethyl ester

HRID 2231443Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2231443
[OH:1][C:2]1[C:7]([CH2:8][CH2:9][CH3:10])=[C:6]([OH:11])[CH:5]=[CH:4][C:3]=1[C:12](=[O:14])[CH3:13].[CH2:15]([O:17][C:18](=[O:38])[CH2:19][O:20][C:21]1[CH:26]=[CH:25][C:24]([C:27](=[O:29])[CH3:28])=[C:23]([O:30][CH2:31][CH2:32][CH2:33]Br)[C:22]=1[CH2:35][CH2:36][CH3:37])[CH3:16].C(=O)([O-])[O-].[K+].[K+].[I-].[K+]>CC(C)=O.CN(C)C=O>[CH2:15]([O:17][C:18](=[O:38])[CH2:19][O:20][C:21]1[CH:26]=[CH:25][C:24]([C:27](=[O:29])[CH3:28])=[C:23]([O:30][CH2:31][CH2:32][CH2:33][O:11][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:22]=1[CH2:35][CH2:36][CH3:37])[CH3:16]

Komponenten

7

Edukt 4

HCID 4875Potassium IodideHCID 11430Potassium CarbonateHCID 27751982',4'-Dihydroxy-3'-propylacetophenoneHCID 133891464-Acetyl-3-(3-bromopropoxy)-2-propylphenoxy acetic acid ethyl ester

Produkt 1

HCID 13389148[4-Acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenoxy)propoxy]-2-propylphenoxy]acetic acid ethyl esterAusbeute 68 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 180AcetoneLösungsmittelHCID 6228DimethylformamideLösungsmittel

Versuchsvorschrift

A mixture of 1.17 g of 1-(2,4-dihydroxy-3-propylphenyl)ethanone, 2.41 g of 4-acetyl-3-(3-bromopropoxy)-2-propylphenoxy acetic acid ethyl ester, 1.66 g of anhydrous potassium carbonate and 0.1 g of potassium iodide in 15 ml of anhydrous acetone and 15 ml of anhydrous dimethylformamide was stirred at reflux for 18 hours. The solvent was removed in vacuo, 50 ml of 0.1N hydrochloric acid was added to the residue and the product was extracted with methylene chloride. The dried, over sodium sulfate, extract was concentrated in vacuo and the crude product was crystallized from methanol to yield 2.1 g, mp 45°-46°, (68% yield) of [4-acetyl-3-[3-(4-acetyl-3-hydroxy-2-propylphenoxy)propoxy]-2-propylphenoxy]acetic acid ethyl ester.

Aufarbeitung

  1. temperatureat reflux for 18 hours
  2. customThe solvent was removed in vacuo, 50 ml of 0.1N hydrochloric acid
  3. additionwas added to the residue
  4. extractionthe product was extracted with methylene chloride
  5. extractionThe dried, over sodium sulfate, extract
  6. concentrationwas concentrated in vacuo
  7. customthe crude product was crystallized from methanol

Quellen und Nachweise

ORD-Eintrag
ord-3a3d9d363e2f4390b0a9fe057c52c046
Quelldatensatz
uspto-grants-1988_11
Patentnummer
US04782176

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