4-Nitrophenol → Methyl 2-(2-(4-nitrophenoxy)ethoxy)acetate

HRID 501857Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 501857
[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([OH:10])=[CH:6][CH:5]=1)([O-:3])=[O:2].C([O-])([O-])=O.[K+].[K+].[I-].[Na+].[CH3:19][O:20][C:21](=[O:27])[CH2:22][O:23][CH2:24][CH2:25]Br>CC(C)=O>[CH3:19][O:20][C:21](=[O:27])[CH2:22][O:23][CH2:24][CH2:25][O:10][C:7]1[CH:8]=[CH:9][C:4]([N+:1]([O-:3])=[O:2])=[CH:5][CH:6]=1

Komponenten

6

Edukt 4

HCID 9804-NitrophenolHCID 5238Sodium IodideHCID 11430Potassium CarbonateHCID 18946503Methyl (2-bromoethoxy)acetate

Produkt 1

HCID 59253929Methyl 2-(2-(4-nitrophenoxy)ethoxy)acetateAusbeute 43,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 180AcetoneLösungsmittel

Versuchsvorschrift

To a mixture of 4-nitrophenol (5 g, 36 mmol), anhydrous K2CO3 (20 g, 145 mmol) and sodium iodide (2 g, 13.3 mmol) in anhydrous acetone (100 ml) was added (2-bromoethoxy)acetic acid methyl ester (11 g, 56 mmol) and then refluxed for 24 hours. Acetone was distilled off and water (100 ml) was added. Crude 42 was filtered, dried and purified by column chromatography on silica gel using benzene as eluant to give pure 42 (4 g, 43.6%) as a white fluffy powder with an m.p. between 96-97.8° C.

Aufarbeitung

  1. temperaturerefluxed for 24 hours
  2. distillationAcetone was distilled off
  3. additionwater (100 ml) was added
  4. filtrationCrude 42 was filtered
  5. customdried
  6. custompurified by column chromatography on silica gel

Quellen und Nachweise

ORD-Eintrag
ord-8b3d6ab211ad4bf9a16f99c70393b2e4
Quelldatensatz
uspto-grants-2010_08
Patentnummer
US07772352B2

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