2,4,6-Trichloropyrimidine → 4,6-Dichloro-2-(2-(S)-methylpyrrolidin-1-yl)pyrimidine
反応式
Cl[C:2]1[N:7]=[C:6]([Cl:8])[CH:5]=[C:4]([Cl:9])[N:3]=1.C(=O)(O)[O-].[Na+].[CH3:15][C@H:16]1[CH2:20][CH2:19][CH2:18][NH:17]1>CO>[Cl:9][C:4]1[CH:5]=[C:6]([Cl:8])[N:7]=[C:2]([N:17]2[CH2:18][CH2:19][CH2:20][C@@H:16]2[CH3:15])[N:3]=1参加物
5
反応条件
- 温度
- 0 °C
実験手順
Dissolve 2,4,6-trichloropyrimidine (23.5 g, 0.13 mol) in anhydrous MeOH (220 mL), and add solid sodium bicarbonate (28.3 g, 0.33 mol). Cool to 0° C. and add 2-(S)-methylpyrrolidine (12 g, 0.14 mol) dropwise. Let stir at room temperature for 16 h. Filter off the excess sodium bicarbonate, and evaporate under reduced pressure. Purify by SiO2 flash chromatography, using 50:1 hexanes:EtOAc, increasing to 30:1 hexanes:EtOAc, to provide the title compound as a white solid.
後処理
- filtrationFilter off the excess sodium bicarbonate
- customevaporate under reduced pressure
- customPurify by SiO2 flash chromatography
- temperatureEtOAc, increasing to 30:1 hexanes
出典と根拠
- ORDレコード
- ord-cb545ec08cda4598838ee69a3cdb9a4d
- 出典データセット
- uspto-grants-2012_12
- 特許番号
- US08334382B2
反応ノート
読み込み中…