Tetrahydrofuran → 1-(2-Isopropylamino-6-methyl-pyrimidin-4-yl)-ethanone
反応式
CON(C)[C:4]([C:6]1[CH:11]=[C:10]([CH3:12])[N:9]=[C:8]([NH:13][CH:14]([CH3:16])[CH3:15])[N:7]=1)=[O:5].[CH2:18]1COCC1>C[Mg]Br.CCOCC>[CH:14]([NH:13][C:8]1[N:7]=[C:6]([C:4](=[O:5])[CH3:18])[CH:11]=[C:10]([CH3:12])[N:9]=1)([CH3:15])[CH3:16]参加物
5
反応条件
- 温度
- 5 °C
実験手順
To a solution of 2-isopropylamino-6-methyl-pyrimidine-4-carboxylic acid methoxy-methyl-amide (2.39 g, 10.0 mmol) in THF (50 mL), methyl magnesium bromide (7.0 mL of a 3 M solution in ether, 20.1 mmol) is added dropwise at 5° C. The mixture is stirred at 5° C. for 1.5 h. The reaction is quenched by adding NH4Cl. The mixture is diluted with EtOAc (75 mL), washed with sat. aq. NaHCO3, dried over Na2SO4, filtered and concentrated to give 1-(2-isopropylamino-6-methyl-pyrimidin-4-yl)-ethanone (1.71 g) as a yellow solid. LC-MS: tR=0.75 min, [M+H]+=194.01; 1H NMR (CDCl3): δ 1.29 (d, J=6.5 Hz, 6H), 2.41 (s, 3H), 2.62 (s, 3H), 4.22 (m, 1H), 5.02 (m, 1H), 6.97 (s, 1H).
後処理
- customThe reaction is quenched
- additionby adding NH4Cl
- additionThe mixture is diluted with EtOAc (75 mL)
- washwashed with sat. aq. NaHCO3
- dry with materialdried over Na2SO4
- filtrationfiltered
- concentrationconcentrated
出典と根拠
- ORDレコード
- ord-6bc4ff87e12b43aa97e52f9ab50c5571
- 出典データセット
- uspto-grants-2012_10
- 特許番号
- US08299086B2
反応ノート
読み込み中…