Eosin → 2-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid

HRID 1176799

Reaktionsgleichung

Reaktionsgleichung von HRID 1176799
[CH:1]1[CH:6]=[C:5]([C:7]2[C:21]3[C:16](=[C:17](Br)[C:18]([O-:23])=[C:19](Br)[CH:20]=3)[O:15][C:14]3[C:8]=2[CH:9]=[C:10](Br)[C:11]([C:13]=3Br)=[O:12])[C:4]([C:27]([O-:29])=[O:28])=[CH:3][CH:2]=1.[Na+].[Na+].[Na][Na].CC1C(Br)=CC2C(C3C=CC=CC=3C(O)=O)=C3C(=C(Br)C(C(Br)=C3)=O)OC=2C=1Br>O>[CH:1]1[CH:2]=[CH:3][C:4]([C:27]([OH:29])=[O:28])=[C:5]([C:7]2[C:8]3[CH:9]=[CH:10][C:11]([OH:12])=[CH:13][C:14]=3[O:15][C:16]3[C:21]=2[CH:20]=[CH:19][C:18]([CH:17]=3)=[O:23])[CH:6]=1

Komponenten

5

Edukt 3

HCID 11048EosinHCID 141233DisodiumHCID 20685766Eosin_Y

Produkt 1

HCID 33832-(6-Hydroxy-3-oxo-3H-xanthen-9-yl)benzoic acid

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

With total consumption of the fluorescein, the bromination reaction leads to the formation of a single product, tetrabromofluorescein (4Br—F), the disodium salt of which is commercially known as Eosin Y. The final reaction mixture is diluted in water and the product is extracted from the mixture with ethyl acetate.

Aufarbeitung

  1. customWith total consumption of the fluorescein
  2. customthe bromination reaction
  3. customThe final reaction mixture
  4. extractionthe product is extracted from the mixture with ethyl acetate

Quellen und Nachweise

ORD-Eintrag
ord-056a597e74014b6f9e496c2103f8b8aa
Quelldatensatz
uspto-grants-2010_11
Patentnummer
US07842826B2

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