4-oxo-4H-1-benzopyran-2-carbonyl chloride → HCID 12752076、化合物
反応式
[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]=1参加物
4
実験手順
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.
後処理
- temperatureHeat
- temperatureat reflux for 24 hours
- extractionExtract twice with dichloromethane
- dry with materialDry the separated organic layers over MgSO4
- filtrationfilter
- customevaporate in vacuo
出典と根拠
- ORDレコード
- ord-784a2e5399874c028d725a65868b5745
- 出典データセット
- uspto-grants-1997_11
- 特許番号
- US05684017
反応ノート
読み込み中…