4-Hydroxybenzoic Acid → Benzoic acid, 4-(acetyloxy)-
反応式
[OH:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1.[C:11](Cl)(=[O:13])[CH3:12]>C1C=CC=CC=1>[C:11]([O:1][C:2]1[CH:10]=[CH:9][C:5]([C:6]([OH:8])=[O:7])=[CH:4][CH:3]=1)(=[O:13])[CH3:12]参加物
4
実験手順
A solution of 20 g. of 4-hydroxybenzoic acid in 200 ml. of benzene and 40 ml. of acetyl chloride is refluxed for 3 hours. Solvent and excess acetyl chloride are evaporated. The mixture is dissolved in methanol (150 ml.) and water (20 ml.) added; after 15 minutes, addition of more water results in the precipitation of 4-acetoxy benzoic acid, m.p. 192°-193° C.
後処理
- customSolvent and excess acetyl chloride are evaporated
- dissolutionThe mixture is dissolved in methanol (150 ml.)
- additionwater (20 ml.) added
- additionaddition of more water
出典と根拠
- ORDレコード
- ord-97e6103d3157480888b34d018a955edc
- 出典データセット
- uspto-grants-1979_04
- 特許番号
- US04151297
反応ノート
読み込み中…