Hydrogen iodide → 2,6-Dibromoanthracene

HRID 556212Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 556212
[Br:1][C:2]1[CH:15]=[CH:14][C:13]2[C:12](=O)[C:11]3[C:6](=[CH:7][CH:8]=[C:9]([Br:17])[CH:10]=3)[C:5](=O)[C:4]=2[CH:3]=1.I.[PH2](O)=O>C(O)(=O)C>[Br:1][C:2]1[CH:15]=[CH:14][C:13]2[C:4](=[CH:5][C:6]3[C:11]([CH:12]=2)=[CH:10][C:9]([Br:17])=[CH:8][CH:7]=3)[CH:3]=1

Komponenten

5

Edukt 3

HCID 24841Hydrogen iodideHCID 4124402Phosphinic AcidHCID 109594842,6-Dibromoanthraquinone

Produkt 1

HCID 220589062,6-Dibromoanthracene

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 176Acetic AcidLösungsmittel

Versuchsvorschrift

Subsequently, a mixture of 2,6-dibromoanthraquinone (22.41 g, 61.23 mmol), acetic acid (250 mL), 56-58% hydriodic acid (100 mL), and 50% hypophosphorous acid (55 mL) was refluxed for 5 days. The mixture was cooled to RT and poured into ice water (800 mL). The resulting precipitate was filtered, washed with water and ethanol, and recrystallized from toluene (620 mL) to give 2,6-dibromoanthracene: 14.49 g pale yellow flake-like crystals.

Aufarbeitung

  1. temperaturewas refluxed for 5 days
  2. filtrationThe resulting precipitate was filtered
  3. washwashed with water and ethanol
  4. customrecrystallized from toluene (620 mL)

Quellen und Nachweise

ORD-Eintrag
ord-3a0936236e994d7e8cc92e93c6d99c85
Quelldatensatz
uspto-grants-2011_11
Patentnummer
US08053840B2

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