Phenol → 1-(4-Hydroxyphenyl)-2-(4-methoxyphenyl)ethanone
反応式
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][C:6]([CH2:9][C:10]([OH:12])=O)=[CH:5][CH:4]=1.[C:13]1([OH:19])[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1>>[OH:19][C:13]1[CH:18]=[CH:17][C:16]([C:10](=[O:12])[CH2:9][C:6]2[CH:5]=[CH:4][C:3]([O:2][CH3:1])=[CH:8][CH:7]=2)=[CH:15][CH:14]=1参加物
3
反応条件
- 温度
- 80 °C
実験手順
To a solution of 2-(4-methoxyphenyl)acetic acid (10 g, 0.06 mol) in PPA (20 mL) was added dropwise phenol (5.6 g, 0.06 mol) under an inert atmosphere. The mixture was then stirred at 80° C. for 1 h, quenched with cold water and extracted with EtOAc (2×300 mL). The combined organic layers were dried over Na2SO4 and concentrated in vacuo to obtain the crude product which was purified via silica gel column chromatography to afford 1-(4-hydroxyphenyl)-2-(4-methoxyphenyl)-ethanone (3 g, 20%) as a pale yellow solid
後処理
- customquenched with cold water