2-Iodobutane → 5-Amino-3-sec-butylthio-4-phenoxybenzoic acid
反応式
[NH2:1][C:2]1[C:3]([O:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[C:4]([SH:11])[CH:5]=[C:6]([CH:10]=1)[C:7]([OH:9])=[O:8].[CH:19](I)([CH2:21][CH3:22])[CH3:20]>C(=O)([O-])O.[Na+]>[NH2:1][C:2]1[C:3]([O:12][C:13]2[CH:14]=[CH:15][CH:16]=[CH:17][CH:18]=2)=[C:4]([S:11][CH:19]([CH2:21][CH3:22])[CH3:20])[CH:5]=[C:6]([CH:10]=1)[C:7]([OH:9])=[O:8]参加物
4
反応条件
- 温度
- 55 °C
実験手順
A mixture of 5-amino-3-mercapto-4-phenoxybenzoic acid (2.6 g), sodium hydrogen carbonate (2g), saturated sodium hydrogen carbonate (100 ml), and sec-butyl iodide (2.2 g) is stirred for 6 hours at 55°C. After cooling, 5-amino-3-sec-butylthio-4-phenoxybenzoic acid is precipitated by adition of hydrochloric acid until pH 2.5. After collection, recrystallization from aqueous ethanol, and drying in vacuo at 80°C, the compound is obtained with a melting point of 157°-158°C.