3-Hydroxyacetophenone → 3-(2-Hydroxypropan-2-yl)phenol

HRID 2066390

Reaktionsgleichung

Reaktionsgleichung von HRID 2066390
[OH:1][C:2]1[CH:3]=[C:4]([C:8](=[O:10])[CH3:9])[CH:5]=[CH:6][CH:7]=1.[CH3:11][Mg]Br.[Cl-].[NH4+]>O1CCCC1.C(OCC)C>[OH:10][C:8]([C:4]1[CH:3]=[C:2]([OH:1])[CH:7]=[CH:6][CH:5]=1)([CH3:11])[CH3:9]

Komponenten

6

Edukt 3

HCID 84873-HydroxyacetophenoneHCID 25517Ammonium ChlorideHCID 178418573HCID 178418573, Verbindung

Produkt 1

HCID 4581423-(2-Hydroxypropan-2-yl)phenol

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 3283Diethyl EtherLösungsmittelHCID 8028TetrahydrofuranLösungsmittel

Versuchsvorschrift

3′-Hydroxyacetophenone (500 mg) was dissolved in tetrahydrofuran (10 ml), and the solution was slowly added dropwise with a 3 M solution of methylmagnesium bromide in diethyl ether (3.7 ml) under ice cooling. The mixture was stirred at the same temperature for 2 hours, and then added with saturated aqueous ammonium chloride, the mixture was extracted with ethyl acetate, and the organic layer was concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=5:1 to 1:1) to obtain the title compound (224.3 mg).

Aufarbeitung

  1. extractionthe mixture was extracted with ethyl acetate
  2. concentrationthe organic layer was concentrated under reduced pressure
  3. customThe resulting residue was purified by silica gel column chromatography (hexane:ethyl acetate=5:1 to 1:1)

Quellen und Nachweise

ORD-Eintrag
ord-39c07a8b5ee34016b3b834139786b5f3
Quelldatensatz
uspto-grants-2012_10
Patentnummer
US08293715B2

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