Sodium Hydroxide → 5-(1H-Tetrazol-1-yl)pentanoic acid
反応式
C([O:3][C:4](=[O:14])[CH2:5][CH2:6][CH2:7][CH2:8][N:9]1[CH:13]=[N:12][N:11]=[N:10]1)C.[OH-].[Na+]>CO>[N:9]1([CH2:8][CH2:7][CH2:6][CH2:5][C:4]([OH:14])=[O:3])[CH:13]=[N:12][N:11]=[N:10]1参加物
4
実験手順
2.12 g of (5-tetrazol-1-yl)-valeric acid ethyl ester are dissolved in 5 ml of methanol, and 4.28 ml of a methanolic NaOH solution (3N) are added. After stirring for 2.5 hours at room temperature, the solvent is distilled off and the residue is taken up in water. After washing with ethyl acetate, the aqueous phase is acidified (pH 3) and extracted twice with ethyl acetate. After drying and concentration by evaporation, the pure title compound is obtained.
後処理
- distillationthe solvent is distilled off
- washAfter washing with ethyl acetate
- extractionextracted twice with ethyl acetate
- customAfter drying
- concentrationconcentration
- customby evaporation
出典と根拠
- ORDレコード
- ord-414e0b081d944a87a3826097904e4a0d
- 出典データセット
- uspto-grants-1988_12
- 特許番号
- US04794109
反応ノート
読み込み中…