p-Toluenesulfonic acid → HCID 15228403、化合物
反応式
[Cl:1][C:2]1[CH:3]=[C:4]([S:9][CH2:10][CH:11]([CH2:15][CH2:16][C:17]([OH:19])=[O:18])[C:12]([OH:14])=[O:13])[CH:5]=[CH:6][C:7]=1[Cl:8].[C:20]1(C)C=CC(S(O)(=O)=O)=CC=1>CO>[Cl:1][C:2]1[CH:3]=[C:4]([S:9][CH2:10][CH:11]([CH2:15][CH2:16][C:17]([O:19][CH3:20])=[O:18])[C:12]([OH:14])=[O:13])[CH:5]=[CH:6][C:7]=1[Cl:8]参加物
4
反応条件
- 温度
- 40 °C
実験手順
A mixture of 2-(3,4-dichlorophenylthiomethyl)glutaric acid (3.00 g), methanol (30 ml), and p-toluenesulfonic acid (0.09 g) was stirred at 40° C. for 2.5 hours. The reaction mixture was concentrated in vacuo, and the resulting residue was purified by flash column chromatography on silica by eluting with chloroform/ethanol (10:1) to give 2.92 g of 3-(3,4-dichlorophenylthio)-2-(2-methoxycarbonylethyl)propionic acid as an oil.
後処理
- concentrationThe reaction mixture was concentrated in vacuo
- customthe resulting residue was purified by flash column chromatography on silica
- washby eluting with chloroform/ethanol (10:1)
出典と根拠
- ORDレコード
- ord-d33357b1d12e4b5994000da56ddcd000
- 出典データセット
- uspto-grants-1992_09
- 特許番号
- US05145869
反応ノート
読み込み中…