4-Bromophenol → 1-Bromo-4-(4-bromobutoxy)benzene
反応式
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([OH:8])=[CH:4][CH:3]=1.[Br:9][CH2:10][CH2:11][CH2:12][CH2:13]Br.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O.C(OCC)(=O)C>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([O:8][CH2:13][CH2:12][CH2:11][CH2:10][Br:9])=[CH:4][CH:3]=1参加物
6
実験手順
A solution of 4-bromophenol (3 g) and 1,4-dibromobutane (6.2 ml) in N,N-dimethylformamide (30 ml) was treated with potassium carbonate (2.89 g) at room temperature for 27 hours. The mixture was diluted with ethyl acetate and washed with brine. The organic layer was dried over magnesium sulfate, filtered, and evaporated. The residue was purified by silica gel chromatography (25:1 hexane-ethyl acetate elution) to give 1-bromo-4-(4-bromobutoxy)benzene (3.09 g).
後処理
- washwashed with brine
- dry with materialThe organic layer was dried over magnesium sulfate
- filtrationfiltered
- customevaporated
- customThe residue was purified by silica gel chromatography (25:1 hexane-ethyl acetate elution)
出典と根拠
- ORDレコード
- ord-f9fe90f1826b433a9035dd98e41faffc
- 出典データセット
- uspto-grants-2005_04
- 特許番号
- US06884868B1
反応ノート
読み込み中…