Reaktionsgleichung
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([Cl:12])=[C:6]([C:8](O)([CH3:10])[CH3:9])[CH:7]=1.C1(C)C=CC(S(O)(=O)=O)=CC=1.O>C1(C)C=CC=CC=1.CCOCC>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([Cl:12])=[C:6]([C:8]([CH3:10])=[CH2:9])[CH:7]=1Komponenten
6
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
To a solution of 2-(5-bromo-2-chlorophenyl)-propan-2-ol (500 mg, 2 mmol, 1 eq) in toluene (5 ml) was added a catalytic amount of p-toluenesulfonic acid (38 mg, 0.2 mmol, 0.1 eq) and the solution was refluxed under a Dean-Stark H2O separator overnight. The reaction mixture was allowed to cool to RT and was diluted with ether. The mixture was washed with sat. NaHCO3-solution and brine, dried (MgSO4), filtered and concentrated in vacuo to give the desired product (357 mg, 77%) as a colorless oil which did not require further purification.
Aufarbeitung
- washThe mixture was washed with sat. NaHCO3-solution and brine
- dry with materialdried (MgSO4)
- filtrationfiltered
- concentrationconcentrated in vacuo
Quellen und Nachweise
- ORD-Eintrag
- ord-8a360614174e4bb88cfe428790319bd5
- Quelldatensatz
- uspto-grants-2010_06
- Patentnummer
- US07745477B2
Verknüpfte Notizen
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