HCID 86742261、化合物 → HCID 20132436、化合物
反応式
[Cl:1][C:2]1[CH:27]=[CH:26][C:5]([CH:6]([C:14]2[CH:15]=[C:16]([CH:23]=[CH:24][CH:25]=2)/[CH:17]=[CH:18]/[C:19]([O:21]C)=[O:20])[N:7]2[CH2:12][CH2:11][N:10]([CH3:13])[CH2:9][CH2:8]2)=[CH:4][CH:3]=1>CO.[OH-].[K+]>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([CH:6]([C:14]2[CH:15]=[C:16]([CH:23]=[CH:24][CH:25]=2)/[CH:17]=[CH:18]/[C:19]([OH:21])=[O:20])[N:7]2[CH2:12][CH2:11][N:10]([CH3:13])[CH2:9][CH2:8]2)=[CH:26][CH:27]=1参加物
4
実験手順
The ester from above (1.05 g, 2.73 mmol) was dissolved in 20 mL of methanol with 8 mL of 1M potassium hydroxide and stirred overnight at room temperature. The methanol was removed in vacuo and the remaining aqueous solution was extracted with two 15 mL portions of ether. The aqueous layer was adjusted to a pH of 7 with 1M hydrochloric acid. The solution was chilled and the white powdery precipitate was collected by filtration to give 504 mg (46%) of (E)-3-(4-chloro-α-(4-methyl-1-piperazinyl)benzyl)cinnamic acid, m.p. 131°-141°. Calc. for C21H23ClN2O2.2H2O: C, 61.99; H, 6.69; N, 6.88; Cl, 8.71. Found: C, 61.98; H, 6.72; N, 6.89; Cl, 8.66.
後処理
- customThe methanol was removed in vacuo
- extractionthe remaining aqueous solution was extracted with two 15 mL portions of ether
- temperatureThe solution was chilled
- filtrationthe white powdery precipitate was collected by filtration
出典と根拠
- ORDレコード
- ord-ed3e99f54e074df78f952d9645a28d95
- 出典データセット
- uspto-grants-1988_07
- 特許番号
- US04757074
反応ノート
読み込み中…