反応式
[N:1]1([N:9]2[CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]2)[CH2:6][CH2:5][C:4](=O)[CH2:3][C:2]1=[O:8].[Cl:15][C:16]1[CH:21]=[C:20]([Cl:22])[CH:19]=[CH:18][C:17]=1[NH:23][CH2:24][C:25](=O)[CH3:26].CC1C=CC(S(O)(=O)=O)=CC=1>C1(C)C=CC=CC=1>[Cl:15][C:16]1[CH:21]=[C:20]([Cl:22])[CH:19]=[CH:18][C:17]=1[N:23]1[C:4]2[CH2:5][CH2:6][N:1]([N:9]3[CH2:14][CH2:13][CH2:12][CH2:11][CH2:10]3)[C:2](=[O:8])[C:3]=2[C:25]([CH3:26])=[CH:24]1参加物
実験手順
To a solution of [1,1′]bipiperidinyl-2,4-dione (520 mg, 2.65 mmol) from Example 1 step 4 in dry toluene (25 ml) at room temperature were added 1-(2,4-dichlorophenylamino)-propan-2-one (576 mg, 2.64 mmol) from Step 1 above followed by a catalytic amount of p-TSA. The reaction mixture was boiled under reflux with a Dean-Stark trap, and 10 ml toluene was collected in the trap. One molar equivalent of p-TSA (250 mg) was added and the reaction mixture was boiled under reflux for 5.5 hours. After cooling to room temperature, the reaction mixture was evaporated and purified by flash chromatography (heptane:EtOAc gradient) to give 250 mg (25%) of the title compound as a brown solid. A parallel experiment with 1.51 g 1-(2,4-dichlorophenylamino)propan-2-one afforded 0.68 g (26%) of the product.
後処理
- customwas collected in the trap
- additionOne molar equivalent of p-TSA (250 mg) was added
- temperatureunder reflux for 5.5 hours
- customthe reaction mixture was evaporated
- custompurified by flash chromatography (heptane:EtOAc gradient)
出典と根拠
- ORDレコード
- ord-d363864448134b18a801cc69d3176727
- 出典データセット
- uspto-grants-2011_01
- 特許番号
- US07875626B2
関連ノート
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