Hydrochloric Acid → 4-Chloro-3',5'-difluoro-6-(1-hydroxyethyl)-3-methylbiphenyl-2-carboxylic acid
反応式
[Cl:1][C:2]1[C:3]([CH3:21])=[C:4]([CH:19]=[O:20])[C:5]([C:11]2[CH:16]=[C:15]([F:17])[CH:14]=[C:13]([F:18])[CH:12]=2)=[C:6]([CH:8]([OH:10])[CH3:9])[CH:7]=1.[OH-:22].[Na+].Cl>CO.O>[Cl:1][C:2]1[C:3]([CH3:21])=[C:4]([C:19]([OH:22])=[O:20])[C:5]([C:11]2[CH:16]=[C:15]([F:17])[CH:14]=[C:13]([F:18])[CH:12]=2)=[C:6]([CH:8]([OH:10])[CH3:9])[CH:7]=1参加物
6
実験手順
To a solution of 4-chloro-3′,5′-difluoro-6-(1-hydroxyethyl)-3-methylbiphenyl-2-carbaldehyde (1.00 g, 3.22 mmol) in methanol (40 mL) was added 1.0 M sodium hydroxide in water (16 mL, 16 mmol), followed by 1.0 M sodium hydroxide in water. After stirred at rt overnight, the mixture was slowly acidified to pH 5 with 1 N HCl, then extracted with EtOAc. The combined organic layers were washed with brine, dried over magnesium sulfate, and concentrated to dry under reduced pressure. The crude residue was used directly in next step (1.05 g, 100%).
後処理
- extractionextracted with EtOAc
- washThe combined organic layers were washed with brine
- dry with materialdried over magnesium sulfate
- concentrationconcentrated
- customto dry under reduced pressure
出典と根拠
- ORDレコード
- ord-fd81364390794106aa383305c1a2cae7
- 出典データセット
- uspto-grants-2015_12
- 特許番号
- US09199982B2
反応ノート
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