Hydrogen iodide → 2,6-Dibromoanthracene

HRID 506211Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 506211
[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 then cooled to room temperature and poured into ice water (800 mL). Thereafter, the precipitate was filtered and washed with water and ethanol. The precipitate was then re-crystallized from toluene (620 mL) to give 14.49 g of pale yellow flake-like crystals of 2,6-dibromoanthracene (Compound 24).

Aufarbeitung

  1. temperaturewas refluxed for 5 days
  2. filtrationThereafter, the precipitate was filtered
  3. washwashed with water and ethanol
  4. customThe precipitate was then re-crystallized from toluene (620 mL)

Quellen und Nachweise

ORD-Eintrag
ord-9506387026d14b449bb4a3e21156d892
Quelldatensatz
uspto-grants-2010_08
Patentnummer
US07781761B2

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