反応式
C([N-]C(C)C)(C)C.[Li+].[F:9][C:10]1[CH:15]=[CH:14][C:13]([CH2:16][C:17]([O:19][CH3:20])=[O:18])=[CH:12][CH:11]=1.[CH3:21][S:22][C:23]1[N:28]=[C:27]([CH:29]=[O:30])[CH:26]=[CH:25][N:24]=1>C1COCC1>[CH3:20][O:19][C:17](=[O:18])[CH:16]([C:13]1[CH:12]=[CH:11][C:10]([F:9])=[CH:15][CH:14]=1)[CH:29]([C:27]1[CH:26]=[CH:25][N:24]=[C:23]([S:22][CH3:21])[N:28]=1)[OH:30]参加物
実験手順
To a cold (−78° C.) solution of lithium diisopropylamide (21.4 mL of 2M solution in THF, 42.8 mmol) in THF (70 mL) is added dropwise a solution of methyl 4-fluorophenyl-acetate (6.0 g, 35.7 mmol) in THF (30 mL). The solution is stirred for 1 hour at −78° C. after which a solution of 2-methylsulfanyl-pyrimidine-4-carbaldehyde, 1, (6.0 g, 39.3 mmol) in THF (30 mL) is added dropwise to the reaction mixture. Stirring is continued for 45 minutes at −78° C. then the reaction is quenched by pouring the reaction solution into aqueous saturated NH4Cl. The aqueous phase is extracted with ethyl acetate. The organic phases combined, dried (MgSO4), filtered, and concentrated in vacuo. The crude residue is purified over silica (33% EtOAc/hexanes) to afford 8.7 g (76%) of the desired product as a mixture (1:1) of diastereomers.
後処理
- additionis added dropwise to the reaction mixture
- customthe reaction is quenched
- additionby pouring the reaction solution into aqueous saturated NH4Cl
- extractionThe aqueous phase is extracted with ethyl acetate
- dry with materialdried (MgSO4)
- filtrationfiltered
- concentrationconcentrated in vacuo
- customThe crude residue is purified over silica (33% EtOAc/hexanes)
出典と根拠
- ORDレコード
- ord-b695f5fa5646402185bd99e6f5509a2f
- 出典データセット
- uspto-grants-2006_08
- 特許番号
- US07087615B2
関連ノート
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