Phosphorus oxychloride → HCID 58305987、化合物
反応式
P(Cl)(Cl)([Cl:3])=O.[CH2:6]([O:8][C:9](=[O:35])[CH2:10][N:11]1[CH2:16][CH2:15][CH:14]([C:17]2[N:25]=[C:24]3[N:19]([C:20](=O)[NH:21][C:22]([C:26]4[CH:31]=[CH:30][C:29]([Cl:32])=[CH:28][C:27]=4[Cl:33])=[CH:23]3)[N:18]=2)[CH2:13][CH2:12]1)[CH3:7]>[Cl-].C([N+](CC)(CC)CC)C1C=CC=CC=1>[CH2:6]([O:8][C:9](=[O:35])[CH2:10][N:11]1[CH2:12][CH2:13][CH:14]([C:17]2[N:25]=[C:24]3[N:19]([C:20]([Cl:3])=[N:21][C:22]([C:26]4[CH:31]=[CH:30][C:29]([Cl:32])=[CH:28][C:27]=4[Cl:33])=[CH:23]3)[N:18]=2)[CH2:15][CH2:16]1)[CH3:7]参加物
4
反応条件
- 温度
- 120 °C
実験手順
5 ml of phosphoryl chloride were added to 500 mg (1.11 mmol) of ethyl{4-[7-(2,4-dichlorophenyl)-5-oxo-5,6-dihydro [1,2,4]triazolo[1,5-c]-pyrimidin-2-yl]piperidin-1-yl}acetate (Example 54A), 1.01 g (4.44 mmol) of benzyltriethylammonium chloride were added and the reaction mixture was stirred at 120° C. for 2.5 h. The reaction mixture was concentrated and carefully, with vigorous stirring, added to saturated aqueous sodium bicarbonate solution. The pH was adjusted to pH=7 by addition of solid sodium bicarbonate. The aqueous phase was extracted three times with dichloromethane. The combined organic phases were washed once with water, dried with magnesium sulfate and then freed from the solvent. Without further purification, this gave 506 mg (88% of theory) of the product.