Potassium Hydroxide → HCID 86732795、化合物
反応式
[Cl:1][C:2]1[C:11]([O:12][CH2:13][C:14]2[CH:19]=[CH:18][C:17]([O:20][CH3:21])=[CH:16][CH:15]=2)=[C:10]([O:22][CH2:23][C:24]2[CH:29]=[CH:28][C:27]([O:30][CH3:31])=[CH:26][CH:25]=2)[CH:9]=[C:8]2[C:3]=1[C:4](=[O:46])[C:5]([C:34]([O:36]CC1C=CC(OC)=CC=1)=[O:35])=[N:6][N:7]2[CH2:32][CH3:33].[OH-].[K+]>CO.O>[Cl:1][C:2]1[C:11]([O:12][CH2:13][C:14]2[CH:19]=[CH:18][C:17]([O:20][CH3:21])=[CH:16][CH:15]=2)=[C:10]([O:22][CH2:23][C:24]2[CH:29]=[CH:28][C:27]([O:30][CH3:31])=[CH:26][CH:25]=2)[CH:9]=[C:8]2[C:3]=1[C:4](=[O:46])[C:5]([C:34]([OH:36])=[O:35])=[N:6][N:7]2[CH2:32][CH3:33]参加物
5
実験手順
To the solution of 4-methoxybenzyl 5-chloro-1-ethyl-6,7-bis((4-methoxybenzyl)oxy)-4-oxo-1,4-dihydrocinnoline-3-carboxylate (24 g, 37.2 mmol) in methanol (400 mL) and water (133 mL) was added potassium hydroxide (8.35 g, 149 mmol). The reaction mixture was heated to reflux for 3 h. Solvent was removed under vacuum. The residue was suspended in water and the resulting mixture was acidified to pH4 with 2N hydrochloric acid. The precipitated solid was filtered and dried to afford 5-chloro-1-ethyl-6,7-bis((4-methoxybenzyl)oxy)-4-oxo-1,4-dihydrocinnoline-3-carboxylic acid (12.6 g, 24.00 mmol, 64.5% yield). LCMS: (M+H)+: 525.2
後処理
- temperatureThe reaction mixture was heated
- temperatureto reflux for 3 h
- customSolvent was removed under vacuum
- filtrationThe precipitated solid was filtered
- customdried
出典と根拠
- ORDレコード
- ord-a6068a94f2c54e33acaf161457cf625a
- 出典データセット
- uspto-grants-2016_05
- 特許番号
- US09340556B2
反応ノート
読み込み中…