Water → Methyl 2-[(chloroacetyl)amino]benzoate
反応式
[C:1]([O:10][CH3:11])(=[O:9])[C:2]1[C:3](=[CH:5][CH:6]=[CH:7][CH:8]=1)[NH2:4].C(=O)([O-])[O-].[K+].[K+].[Cl:18][CH2:19][C:20](Cl)=[O:21].O>CC(C)=O.O>[Cl:18][CH2:19][C:20]([NH:4][C:3]1[CH:5]=[CH:6][CH:7]=[CH:8][C:2]=1[C:1]([O:10][CH3:11])=[O:9])=[O:21]参加物
6
実験手順
38 Grams of methyl anthranilate and 35 g of potassium carbonate were dissolved in 300 ml of a mixture of acetone-water (2:1), then to this solution was added dropwise 30 g of chloroacetyl chloride under an ice-cooled condition with stirring. After completion of the addition, the reaction was carried out at a room temperature for 2 hours, then 200 ml of water was added to the reaction mixture, and the mixture obtained was ice-cooled, and the crystals precipitated were collected by filtration. The crystals collected were washed with water and ethanol, and recrystallized from methanol to obtain 48.6 g of methyl o-(α-chloroacetylamino)benzoate in the form of colorless needle-like crystals. Melting point: 97°-99° C.
後処理
- temperaturecooled condition
- additionAfter completion of the addition
- customthe mixture obtained
- temperaturecooled
- customthe crystals precipitated
- filtrationwere collected by filtration
- customThe crystals collected
- washwere washed with water and ethanol
- customrecrystallized from methanol
出典と根拠
- ORDレコード
- ord-9390966a078a435b88c8b3049d6b86b1
- 出典データセット
- uspto-grants-1986_04
- 特許番号
- US04585774
反応ノート
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