Ethanol → Benzeneacetic acid, 3,5-dibromo-4-hydroxy-, ethyl ester

HRID 1975257Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1975257
[Br:1][C:2]1[CH:3]=[C:4]([CH2:10][C:11]([OH:13])=[O:12])[CH:5]=[C:6]([Br:9])[C:7]=1[OH:8].S(=O)(=O)(O)O.[CH2:19](O)[CH3:20]>>[Br:1][C:2]1[CH:3]=[C:4]([CH2:10][C:11]([O:13][CH2:19][CH3:20])=[O:12])[CH:5]=[C:6]([Br:9])[C:7]=1[OH:8]

Komponenten

4

Edukt 3

HCID 702EthanolHCID 1118Sulfuric AcidHCID 3253142-(3,5-dibromo-4-hydroxyphenyl)acetic acid

Produkt 1

HCID 318188Benzeneacetic acid, 3,5-dibromo-4-hydroxy-, ethyl ester

Versuchsvorschrift

3,5-Dibromo-4-hydroxyphenylacetic acid (60 g, 0.19 mol), from Preparation A, was suspended in 1 L of ethanol and 10 mL of concentrated sulfuric acid and heated at reflux overnight. The reaction mixture was cooled, concentrated and the product collected by filtration, washed with water, and dried in a vacuum oven to obtain ethyl 3,5-dibromo-4-hydroxyphenylacetate.

Aufarbeitung

  1. temperatureat reflux overnight
  2. temperatureThe reaction mixture was cooled
  3. concentrationconcentrated
  4. filtrationthe product collected by filtration
  5. washwashed with water
  6. customdried in a vacuum oven

Quellen und Nachweise

ORD-Eintrag
ord-bddfa451827142e3b0ae96b43ddcd2e1
Quelldatensatz
uspto-grants-1994_02
Patentnummer
US05284971

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