Sodium Carbonate → HCID 59515525、化合物
反応式
[CH2:1]([N:8]1[C:13](=[O:14])[C:12](Cl)=[C:11]([Cl:16])[C:10]([O:17][CH2:18][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Na+].[Na+].[Cl:31][C:32]1[CH:37]=[CH:36][C:35](B(O)O)=[CH:34][CH:33]=1>C1(C)C=CC=CC=1.C(OCC)(=O)C.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:1]([N:8]1[C:13](=[O:14])[C:12]([C:35]2[CH:36]=[CH:37][C:32]([Cl:31])=[CH:33][CH:34]=2)=[C:11]([Cl:16])[C:10]([O:17][CH2:18][C:19]2[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=2)=[N:9]1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1参加物
反応条件
- 温度
- 100 °C
実験手順
To a solution of 2-benzyl-6-(benzyloxy)-4,5-dichloropyridazin-3(2H)-one (11.8 g, 32.7 mmol), prepared as described in example 1B, in toluene (200 ml) was added Pd(PPh3)4 (2.26 g, 1.96 mmol). After 5 min, 2N aqueous sodium carbonate (65 ml, 130 mmol) solution was added, followed by 4-chlorophenylboronic acid (7.16 g, 45.8 mmol). The reaction was stirred at 100° C. for 6 h. After this time, the solution was cooled RT and the reaction mixture was diluted with ethyl acetate. The resultant solution was washed with water, saturated aqueous NaCl. The organic layer was dried over Na2SO4, filtered and concentrated under reduced pressure. The crude products were purified using silica gel column chromatography eluting with a gradient of 10-20% Ethyl acetate/Hexane to give the title compounds, 2-benzyl-6-(benzyloxy)-5-chloro-4-(4-chlorophenyl)pyridazin-3(2H)-one and 2-benzyl-6-(benzyloxy)-4-chloro-5-(4-chlorophenyl)pyridazin-3(2H)-one which were obtained as a mixture.
後処理
- temperatureAfter this time, the solution was cooled RT
- washThe resultant solution was washed with water, saturated aqueous NaCl
- dry with materialThe organic layer was dried over Na2SO4
- filtrationfiltered
- concentrationconcentrated under reduced pressure
- customThe crude products were purified
- washeluting with a gradient of 10-20% Ethyl acetate/Hexane
出典と根拠
- ORDレコード
- ord-570cc9540bd24c3a89c544cc881c2a3c
- 出典データセット
- uspto-grants-2010_10
- 特許番号
- US07816357B2
反応ノート
読み込み中…