Reaktionsgleichung
[Br:1][C:2]1[CH:3]=[C:4]([CH:7]([OH:10])[CH2:8][CH3:9])[S:5][CH:6]=1>ClCCl.[O-2].[O-2].[Mn+4]>[Br:1][C:2]1[CH:3]=[C:4]([C:7](=[O:10])[CH2:8][CH3:9])[S:5][CH:6]=1Komponenten
4
Edukt 1
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 2
Versuchsvorschrift
33.5 g (151 mmol) of 1-(4-bromo-2-thienyl)-1-propanol are dissolved in 400 mL of dichloromethane. 130 g (1.5 mol) of manganese dioxide are then added portionwise and the medium is stirred at room temperature for 24 hours. After filtration through Celite and then concentration and chromatography on silica gel (eluent: 9 heptane/1 ethyl acetate), the desired product is obtained in the form of white crystals (m=26.6 g; Y=80%).
Aufarbeitung
- filtrationAfter filtration through Celite
- concentrationconcentration and chromatography on silica gel (eluent: 9 heptane/1 ethyl acetate)
Quellen und Nachweise
- ORD-Eintrag
- ord-5d27fd9b2e004ef1b5d56e425461e493
- Quelldatensatz
- uspto-grants-2004_03
- Patentnummer
- US06706725B1
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