p-Toluenesulfonyl isocyanate → Butyl 3-(p-toluenesul-fonylamino carbonylamino)benzoate

関与物質

反応手順

In a three-necked flask equipped with a dropping funnel, a thermometer and a reflux condenser 15.4 g of n-butyl 3-aminobenzoate was placed and 150 ml of toluene was added thereto with stirring to dissolve n-butyl 3-aminobenzoate therein. With stirring the resultant mixture by a magnetic stirrer, 17.3 g of p-toluenesulfonylisocyanate was added dropwise to the mixture through the dropping funnel at room temperature. Continuous stirring of the reaction mixture caused an exothermic reaction, thereby precipitating a large amount of white solid.

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