2-Anthracenecarboxylic acid, 1-amino-9,10-dihydro-9,10-dioxo- → 1-Aminoanthraquinone

HRID 2419230

Reaktionsgleichung

Reaktionsgleichung von HRID 2419230
[NH2:1][C:2]1[C:15]2[C:14](=[O:16])[C:13]3[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=3)[C:7](=[O:17])[C:6]=2[CH:5]=[CH:4][C:3]=1C(O)=O.[OH-].[Na+].S(S([O-])=O)([O-])=O.[Na+].[Na+]>O>[NH2:1][C:2]1[C:15]2[C:14](=[O:16])[C:13]3[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=3)[C:7](=[O:17])[C:6]=2[CH:5]=[CH:4][CH:3]=1

Komponenten

5

Edukt 3

HCID 67012-Anthracenecarboxylic acid, 1-amino-9,10-dihydro-9,10-dioxo-HCID 14798Sodium HydroxideHCID 24489Sodium Dithionite

Produkt 1

HCID 67101-AminoanthraquinoneAusbeute 74 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 962WaterLösungsmittel

Versuchsvorschrift

The crude wet cake of 1-aminoanthraquinone-2-carboxylic acid was dissolved in 1500 ml. of water and 50 ml. of 10 M sodium hydroxide solution. The mixture was heated on a steam bath, and 35 g (0.2 mole) sodium hydrosulfite was added. Heating was continued until a red solid formed. The reaction mixture was then cooled to room temperature, and the red solid was collected by filtration and washed with water to give 18.5g (74% yield) of 1-aminoanthraquinone. The Thin Layer Chromatogram of the crude product showed the presence of less than 5% of impurity.

Aufarbeitung

  1. temperatureThe mixture was heated on a steam bath
  2. temperatureHeating
  3. customformed
  4. filtrationthe red solid was collected by filtration
  5. washwashed with water

Quellen und Nachweise

ORD-Eintrag
ord-47d36fb4d1414d33b21ac3c4ae674b15
Quelldatensatz
uspto-grants-1978_08
Patentnummer
US04105680

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