Triethylamine → (S)-(1-(4-Methoxy-2,6-dimethylphenylsulfonyl)indolin-2-yl)methanol

関与物質

反応手順

To a cold (0° C.) solution of (S)-indolin-2-ylmethanol (4.60 mmol, 1.2 equiv.) and triethylamine (2.5 equiv.) in dichloromethane (20 ml) was added dropwise 4-methoxy-2,6-dimethylbenzenesulfonyl chloride (3.83 mmol, 1.0 equiv.) in dichloromethane (5 ml) and the reaction mixture was stirred at room temperature for 2 h. The mixture was diluted with dichloromethane, washed successively with water and brine, and dried over sodium sulfate. The solvent was evaporated under reduced pressure and the crude product was purified by silica gel column chromatography. Yield: 72%.

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