反応式
[CH3:1][S:2](Cl)(=[O:4])=[O:3].[OH:6][CH2:7][CH2:8][O:9][C:10]1[CH:17]=[CH:16][C:13]([CH:14]=[O:15])=[CH:12][CH:11]=1.C(N(CC)CC)C>C(Cl)Cl>[CH3:1][S:2]([O:6][CH2:7][CH2:8][O:9][C:10]1[CH:17]=[CH:16][C:13]([CH:14]=[O:15])=[CH:12][CH:11]=1)(=[O:4])=[O:3]参加物
5
反応条件
- 温度
- 0 °C
実験手順
Methanesulfonylchloride (3.3 mL) was added dropwise over 5 min to a solution of 4-(2-hydroxyethoxy)benzaldehyde (example 108, step a) (6.4 g) and triethylamine (6.4 mL) in DCM (30 mL) at 0° C. under argon. The resulting mixture was stirred at 0° C. for 10 min and then at RT for 1 h. The reaction mixture was washed with brine (2×30 mL), dried over sodium sulphate, filtered and evaporated in vacuo. The residue was purified by silica gel chromatography eluting with 40-50% EtOAc in petroleum ether (40-60° C.) to give the subtitled compound as a viscous yellow oil. Yield 8.87 g.
後処理
- waitat RT for 1 h
- washThe reaction mixture was washed with brine (2×30 mL)
- dry with materialdried over sodium sulphate
- filtrationfiltered
- customevaporated in vacuo
- customThe residue was purified by silica gel chromatography
- washeluting with 40-50% EtOAc in petroleum ether (40-60° C.)
出典と根拠
- ORDレコード
- ord-94e23e74542148ee9a5ded243d4b3818
- 出典データセット
- uspto-grants-2014_01
- 特許番号
- US08629271B2
関連ノート
読み込み中…