反応式
[Br:1][C:2]1[CH:17]=[C:16]([CH3:18])[CH:15]=[CH:14][C:3]=1[O:4][CH2:5][C:6]([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)=O.O>C(Cl)(Cl)Cl>[Br:1][C:2]1[C:3]2[O:4][CH:5]=[C:6]([C:8]3[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=3)[C:14]=2[CH:15]=[C:16]([CH3:18])[CH:17]=1参加物
4
実験手順
A mixture of 700 g. of polyphosphoric acid and 100 g. of α-(2-bromo-4-methylphenoxy)acetophenone is heated at 80°-90° C. for two hours, then poured into two liters of water with stirring. Chloroform (1 liter) is added, and the phases are separated. The organic layer is washed with water, dried, then evaporated to provide 7-bromo-5-methyl-3-phenylbenzofuran as a brown oil.
後処理
- additionA mixture of 700 g
- customthe phases are separated
- washThe organic layer is washed with water
- customdried
- customevaporated
出典と根拠
- ORDレコード
- ord-cae0c244fee247488e81e68e0fc2c5a9
- 出典データセット
- uspto-grants-1978_11
- 特許番号
- US04124704
関連ノート
読み込み中…