Water → AL 321
反応式
[CH3:1][C:2]([C:22]1[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1)([CH3:21])[CH2:3][O:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][CH:12]([S:18][C:19]#[N:20])[C:13](OCC)=[O:14])=[CH:7][CH:6]=1.[OH2:28]>C(O)C.Cl>[CH3:21][C:2]([C:22]1[CH:23]=[CH:24][CH:25]=[CH:26][CH:27]=1)([CH3:1])[CH2:3][O:4][C:5]1[CH:10]=[CH:9][C:8]([CH2:11][CH:12]2[S:18][C:19](=[O:28])[NH:20][C:13]2=[O:14])=[CH:7][CH:6]=1参加物
5
実験手順
1.9 g Of ethyl 3-[4-(2-methyl-2-phenylpropyloxy)phenyl]-2-thiocyanatopropionate is dissolved in 20 ml of ethanol and to the solution 20 ml of 6 N-hydrochloric acid is added. The mixture is refluxed for 24 hours. After cooling, water is added to the mixture. The mixture is subjected to extraction with ether. The extract is washed with water and then dried. After distilling off ether, the residue is crystallized from ether-n-hexane, whereby 730 mg of 5-[4-(2-methyl-2-phenylpropyloxy)benzyl]thiazolidine-2,4-dione is obtained.
後処理
- additionis added
- temperatureThe mixture is refluxed for 24 hours
- temperatureAfter cooling
- extractionThe mixture is subjected to extraction with ether
- washThe extract is washed with water
- customdried
- distillationAfter distilling off ether
- customthe residue is crystallized from ether-n-hexane
出典と根拠
- ORDレコード
- ord-c2a6100fdcca4e609d50261cb3f6d225
- 出典データセット
- uspto-grants-1982_07
- 特許番号
- US04340605
反応ノート
読み込み中…