Hydrogen Bromide → HCID 135829331、化合物
反応式
C[O:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7]([Cl:13])=[CH:8][CH:9]=[N:10]2)=[CH:5][CH:4]=1.C(=O)(O)[O-].[Na+].[BrH:19]>>[Cl:13][C:7]1[C:6]2[C:11](=[CH:12][C:3]([OH:2])=[CH:4][CH:5]=2)[N:10]=[C:9]([Br:19])[CH:8]=1参加物
4
実験手順
7-Methoxy-4-chloroquinoline(13 g, 67 mmol) was refluxed for 24 hours with 47% hydrobromic acid (30 ml). After allowing to cool, aqueous solution of saturated sodium bicarbonate was added for neutralization and the resulting crystals were filtered. The obtained crystals were washed with water, sufficiently dried and recrystallized from ethanol to obtain 9 g of 4-chloro(bromo)-7-hydroxyquinoline [a mixture of 4-chloro-7-hydroxyquinoline and 4-bromo-7-hydroxy-quinoline (7 : 3)]. This mixture was used without further purification as the starting material in a next reaction.
後処理
- temperatureto cool
- filtrationthe resulting crystals were filtered
- washThe obtained crystals were washed with water
- customsufficiently dried
- customrecrystallized from ethanol
出典と根拠
- ORDレコード
- ord-d8bd8009cdbb41e0951675139e9f6e04
- 出典データセット
- uspto-grants-1998_06
- 特許番号
- US05773449
反応ノート
読み込み中…