Potassium Carbonate → HCID 20506316、化合物
反応式
[OH:1][CH:2]1[CH2:7][CH2:6][N:5]([C:8]([O:10][CH2:11][CH3:12])=[O:9])[CH2:4][CH2:3]1.[F:13][C:14]1[CH:19]=[CH:18][C:17]([CH:20]([C:22]2[CH:27]=[CH:26][C:25]([F:28])=[CH:24][CH:23]=2)Br)=[CH:16][CH:15]=1.C(=O)([O-])[O-].[K+].[K+]>O>[F:13][C:14]1[CH:15]=[CH:16][C:17]([CH:20]([C:22]2[CH:27]=[CH:26][C:25]([F:28])=[CH:24][CH:23]=2)[O:1][CH:2]2[CH2:3][CH2:4][N:5]([C:8]([O:10][CH2:11][CH3:12])=[O:9])[CH2:6][CH2:7]2)=[CH:18][CH:19]=1参加物
5
反応条件
- 温度
- 140 °C
実験手順
A mixture of 21.5 parts of ethyl 4-hydroxy-1-piperidinecarboxylate, 35.2 parts of bis(4-fluorophenyl)bromomethane and 8.6 parts of potassium carbonate is stirred and heated in an oil-bath at 140° C. for 2 hours. The reaction mixture is allowed to cool to room temperature and water is added. The product is extracted with methylbenzene. The extract is washed successively with water, a diluted hydrochloric acid solution and a sodium bicarbonate solution, dried, filtered and evaporated. The forerun is distilled off (bp. till 143° C. at 0.5-1 mm. pressure), yielding ethyl 4-[bis(4-fluorophenyl)methoxy]-1-piperidinecarboxylate as an oily residue.
後処理
- temperatureto cool to room temperature
- extractionThe product is extracted with methylbenzene
- washThe extract is washed successively with water
- dry with materiala diluted hydrochloric acid solution and a sodium bicarbonate solution, dried
- filtrationfiltered
- customevaporated
- distillationThe forerun is distilled off (bp. till 143° C. at 0.5-1 mm. pressure)
出典と根拠
- ORDレコード
- ord-599d899eb2434a94a0b908fe2ea8465d
- 出典データセット
- uspto-grants-1980_04
- 特許番号
- US04200641
反応ノート
読み込み中…