Phenol → Anthraquinone

HRID 982580

Reaktionsgleichung

Reaktionsgleichung von HRID 982580
O[C:2]1[C:15]2[C:14](=[O:16])[C:13]3[C:8](=[C:9](O)[CH:10]=[CH:11][C:12]=3[N+]([O-])=O)[C:7](=[O:21])[C:6]=2[C:5]([N+]([O-])=O)=[CH:4][CH:3]=1.C1(O)C=CC=CC=1>S(=O)(=O)(O)O>[CH:9]1[C:8]2[C:7](=[O:21])[C:6]3[C:15](=[CH:2][CH:3]=[CH:4][CH:5]=3)[C:14](=[O:16])[C:13]=2[CH:12]=[CH:11][CH:10]=1

Komponenten

4

Edukt 2

HCID 996PhenolHCID 30909169,10-Anthracenedione, 1,5-dihydroxy-4,8-dinitro-

Produkt 1

HCID 6780Anthraquinone

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1118Sulfuric AcidLösungsmittel

Reaktionsbedingungen

Temperatur
70 °C

Versuchsvorschrift

Referring to FIG. 1d for the preparation of the blue dichroic dye, R9 are defined as mentioned above. 1,5-dihydroxy-4,8-dinitroanthraquinone and H3BO3 are dissolved in concentrated sulfuric acid and allowed to react with phenol at a temperature between −5° C. and −10° C. The product is collected and dissolved in a solvent (such as acetone), then, potassium carbonate and 1-halo-alkane (may have a fluoride substitute, for example, 1-bromo-4-fluorobutane) are added and heated at 70° C. for reaction, forming an anthraquinone compound as shown in FIG. 1d, a blue dichroic dye.

Aufarbeitung

  1. customReferring to FIG. 1d for the preparation of the blue dichroic dye, R9
  2. customThe product is collected
  3. dissolutiondissolved in a solvent (such as acetone)

Quellen und Nachweise

ORD-Eintrag
ord-f9810df51fc14a6c9961e8a7d07a8e67
Quelldatensatz
uspto-grants-2005_03
Patentnummer
US06861106B2

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