Phosphorus tribromide → HCID 23503539, Verbindung

HRID 1835296Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1835296
[CH2:1]([O:4][C:5]1[CH:12]=[CH:11][C:8]([CH2:9]O)=[CH:7][C:6]=1[O:13][CH3:14])[CH2:2][CH3:3].P(Br)(Br)[Br:16]>C(OCC)C>[CH2:1]([O:4][C:5]1[CH:12]=[CH:11][C:8]([CH2:9][Br:16])=[CH:7][C:6]=1[O:13][CH3:14])[CH2:2][CH3:3]

Komponenten

4

Edukt 2

HCID 24614Phosphorus tribromideHCID 2125298(3-Methoxy-4-propoxyphenyl)methanol

Produkt 1

HCID 23503539HCID 23503539, VerbindungAusbeute 195,3 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 3283Diethyl EtherLösungsmittel2×

Versuchsvorschrift

To a solution of 4-(propyloxy)-3-methoxybenzyl alcohol (2.28 g, 11.62 mmol) in anhydrous diethyl ether (30 mL) was slowly added PBr3 (0.55 mL, 5.81 mmol) via syringe, and the resulting mixture was stirred at room temperature for 2 hours. The mixture was diluted with diethyl ether (150 mL) and washed with saturated aqueous NaHCO3 (2×75 mL) and brine (2×75 mL). The organic layer was dried over anhydrous MgSO4, and the solvent was removed under reduced pressure to afford 4-(propyloxy)-3-methoxybenzyl bromide (2.94 g, 98%) as a white solid.

Aufarbeitung

  1. washwashed with saturated aqueous NaHCO3 (2×75 mL) and brine (2×75 mL)
  2. dry with materialThe organic layer was dried over anhydrous MgSO4
  3. customthe solvent was removed under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-bc60853cd40342579d250e72af56fc99
Quelldatensatz
uspto-grants-2004_08
Patentnummer
US06770658B2

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