4-oxo-4H-1-benzopyran-2-carbonyl chloride → HCID 12752076, Verbindung
Reaktionsgleichung
[O:1]1[C:10]2[C:5](=[CH:6][CH:7]=[CH:8][CH:9]=2)[C:4](=[O:11])[CH:3]=[C:2]1[C:12](Cl)=[O:13].[Cl-].[Al+3].[Cl-].[Cl-]>C1(OC)C=CC=CC=1>[CH3:2][O:1][C:10]1[CH:5]=[CH:6][C:7]([C:12]([C:2]2[O:1][C:10]3[C:5]([C:4](=[O:11])[CH:3]=2)=[CH:6][CH:7]=[CH:8][CH:9]=3)=[O:13])=[CH:8][CH:9]=1Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
Combine chromone-2-carboxylic acid chloride (10 mmol), and aluminum chloride (30 mmol) in anisole (70 mL). Heat at reflux for 24 hours. Pour the reaction mixture into ice-water (150 mL). Extract twice with dichloromethane. Dry the separated organic layers over MgSO4, filter, and evaporate in vacuo. Chromatograph on silica gel to give the title compound.
Aufarbeitung
- temperatureHeat
- temperatureat reflux for 24 hours
- extractionExtract twice with dichloromethane
- dry with materialDry the separated organic layers over MgSO4
- filtrationfilter
- customevaporate in vacuo
Quellen und Nachweise
- ORD-Eintrag
- ord-784a2e5399874c028d725a65868b5745
- Quelldatensatz
- uspto-grants-1997_11
- Patentnummer
- US05684017
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