Water → 2',6'-Diethyl-4'-[3-(methylsulfonyl)propoxy]biphenyl-3-carbaldehyde
Reaktionsgleichung
[CH2:1]([C:3]1[CH:8]=[C:7]([OH:9])[CH:6]=[C:5]([CH2:10][CH3:11])[C:4]=1[C:12]1[CH:17]=[CH:16][CH:15]=[C:14]([CH:18]=[O:19])[CH:13]=1)[CH3:2].CC1C=CC(S(O[CH2:31][CH2:32][CH2:33][S:34]([CH3:37])(=[O:36])=[O:35])(=O)=O)=CC=1.C(=O)([O-])[O-].[K+].[K+].O>CN(C)C=O>[CH2:10]([C:5]1[CH:6]=[C:7]([O:9][CH2:31][CH2:32][CH2:33][S:34]([CH3:37])(=[O:36])=[O:35])[CH:8]=[C:3]([CH2:1][CH3:2])[C:4]=1[C:12]1[CH:17]=[CH:16][CH:15]=[C:14]([CH:18]=[O:19])[CH:13]=1)[CH3:11]Komponenten
6
Edukt 4
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 90 °C
Versuchsvorschrift
To a solution of 2′,6′-diethyl-4′-hydroxybiphenyl-3-carbaldehyde (2.44 g, 9.59 mmol) and 3-(methylsulfonyl)propyl 4-methylbenzenesulfonate (3.36 g, 11.5 mmol) in N,N-dimethylformamide (20 mL) was added potassium carbonate (1.73 g, 12.5 mmol), and the mixture was stirred at 90° C. for 70 hr under nitrogen atmosphere. Water was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate:hexane=30:70-70:30) to give the title compound (2.86 g, yield 80%) as a pale-yellow oil.
Aufarbeitung
- extractionthe mixture was extracted with ethyl acetate
- washThe extract was washed with saturated brine
- dry with materialdried over anhydrous magnesium sulfate
- concentrationconcentrated under reduced pressure
- customThe residue was purified by silica gel column chromatography (ethyl acetate:hexane=30:70-70:30)
Quellen und Nachweise
- ORD-Eintrag
- ord-9fd5546dafa64495b25dcbf99026b32e
- Quelldatensatz
- uspto-grants-2012_01
- Patentnummer
- US08088821B2
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