4-Toluenesulfonyl chloride → N-[4-cyano-3-trifluoromethyl-phenyl]-2-hydroxy-3-[4-methylphenyl-sulfonyloxy]-2-methyl-propionamide
反応式
[C:1]([C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10](=[O:16])[C:11]([OH:15])([CH3:14])[CH2:12][OH:13])=[CH:5][C:4]=1[C:17]([F:20])([F:19])[F:18])#[N:2].[C:21]1([CH3:31])[CH:26]=[CH:25][C:24]([S:27](Cl)(=[O:29])=[O:28])=[CH:23][CH:22]=1>N1C=CC=CC=1.ClCCl>[C:1]([C:3]1[CH:8]=[CH:7][C:6]([NH:9][C:10](=[O:16])[C:11]([OH:15])([CH3:14])[CH2:12][O:13][S:27]([C:24]2[CH:25]=[CH:26][C:21]([CH3:31])=[CH:22][CH:23]=2)(=[O:29])=[O:28])=[CH:5][C:4]=1[C:17]([F:19])([F:18])[F:20])#[N:2]参加物
5
反応条件
- 温度
- 0 °C
実験手順
A solution of 5 g (17.35 mol) of N-[4-cyano-3-trifluoromethyl-phenyl]-2,3-dihydroxy-2-methyl-propionamide in 50 ml of dry pyridine was cooled to 0° C. and 10 g (52.45 mmol) of p-toluenesulfonyl chloride was added in small portions. The mixture was stirred at 0° C. for 5 h, then diluted with 200 ml of dichloromethane, washed three times with 50 ml of saturated aqueous sodium hydrogen carbonate, twice with 50 ml of 10% aqueous hydrochloric acid and 50 ml of brine. The organic layer was dried over sodium sulfate and concentrated in vacuum. The residue was crystallized from a 1:5 mixture of ethyl acetate/petroleum ether, which has a boiling range of 40–70° C.
後処理
- washwashed three times with 50 ml of saturated aqueous sodium hydrogen carbonate
- dry with materialThe organic layer was dried over sodium sulfate
- concentrationconcentrated in vacuum
- customThe residue was crystallized from a 1:5 mixture of ethyl acetate/petroleum ether, which
出典と根拠
- ORDレコード
- ord-bebd325dfe5346c8b105fe26dc350bdc
- 出典データセット
- uspto-grants-2007_04
- 特許番号
- US07199257B1
反応ノート
読み込み中…