Bromine → 6-Bromo-3,4-dihydro-4-methyl-2(1H)-quinolinone
反応式
[Br:1]Br.[CH3:3][CH:4]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[NH:7][C:6](=[O:14])[CH2:5]1>C(O)(=O)C>[Br:1][C:11]1[CH:12]=[C:13]2[C:8](=[CH:9][CH:10]=1)[NH:7][C:6](=[O:14])[CH2:5][CH:4]2[CH3:3]参加物
4
実験手順
A solution of bromine (0.08 cm3) in acetic acid (1 cm3) was added at room temperature to a stirred solution of 4-methyl-3,4-dihydro-2-(1H)-quinolone (0.5 g) in acetic acid (4.0 cm3). After 2 hours, volatile material was removed in vacuo, the residue was partitioned between chloroform (50 cm3) and water (20 cm3), and the organic phase was further extracted with chloroform (2×20 cm3). The combined and dried (MgSO4) organic extracts were evaporated in vacuo and the solid residue was recrystallised from ethyl acetate to afford 6-bromo-4-methyl-3,4-dihydro-2-(1H)-quinolone, m.p. 190°, (0.35 g).
後処理
- customvolatile material was removed in vacuo
- customthe residue was partitioned between chloroform (50 cm3) and water (20 cm3)
- extractionthe organic phase was further extracted with chloroform (2×20 cm3)
- dry with materialdried (MgSO4) organic extracts
- customwere evaporated in vacuo
- customthe solid residue was recrystallised from ethyl acetate
出典と根拠
- ORDレコード
- ord-7553d1d884034a6e93dc5b31500d4c53
- 出典データセット
- uspto-grants-1987_12
- 特許番号
- US04710507
反応ノート
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