Potassium Carbonate → Trans-1-(4-fluorophenyl)-3-(3-hydroxy-4-phenoxy-1-pyrrolidinyl)-1-propanone
反応式
[O:1]([CH:8]1[CH2:12][NH:11][CH2:10][CH:9]1[OH:13])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.CN(C)[CH2:17][CH2:18][C:19]([C:21]1[CH:26]=[CH:25][C:24]([F:27])=[CH:23][CH:22]=1)=[O:20].C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[F:27][C:24]1[CH:23]=[CH:22][C:21]([C:19](=[O:20])[CH2:18][CH2:17][N:11]2[CH2:12][C@@H:8]([O:1][C:2]3[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=3)[C@H:9]([OH:13])[CH2:10]2)=[CH:26][CH:25]=1参加物
反応条件
- 温度
- 70 °C
実験手順
A mixture of 3.6 g. (0.02 mole) of 4-phenoxy-3-pyrrolidinol, 5 g. (0.0215 mole) of β-dimethylamino-p-fluoropropiophenone hydrochloride, 10 g. of potassium carbonate and 50 ml. of dimethylformamide was heated with stirring at 70° C. for 6 hr. while nitrogen gas was bubbled through the reaction mixture. The mixture was poured into water and extracted twice with benzene. The combined extracts were dried over anhydrous sodium sulfate and concentrated to give 6.1 g. of an oil as residue. The oil was chromatographed on 130 g. of silica gel. The desired compound was eluted with 20% acetone in benzene and 2.6 g. (39%) of an oil which gradually crystallized upon standing was obtained. This solid was recrystallized from petroleum ether diethylether to yield a white solid, m.p. 77°-80° C.
後処理
- additionA mixture of 3.6 g
- customwhile nitrogen gas was bubbled through the reaction mixture
- additionThe mixture was poured into water
- extractionextracted twice with benzene
- dry with materialThe combined extracts were dried over anhydrous sodium sulfate
- concentrationconcentrated
- customto give 6.1 g
- customThe oil was chromatographed on 130 g
- washThe desired compound was eluted with 20% acetone in benzene and 2.6 g
- custom(39%) of an oil which gradually crystallized
- customupon standing was obtained
- customThis solid was recrystallized from petroleum ether diethylether
- customto yield a white solid, m.p. 77°-80° C.
出典と根拠
- ORDレコード
- ord-9a48fba82529470a83c5cd69370247b0
- 出典データセット
- uspto-grants-1986_04
- 特許番号
- US04585785
反応ノート
読み込み中…