反应详情

温度

90 °C

A three-necked flask equipped with a dropping funnel, a thermometer, and a reflux condenser was charged with 18.6 g of aniline and the aniline was dissolved in 200 ml of toluene. While the resultant reaction solution was stirred with a magnetic stirrer, 42.0 g of toluenesulfonylisocyanate were added dropwise from the dropping funnel to the reaction solution. During the stirring, an exothermic reaction occurred and a large amount of white solid was precipitated. The resultant reaction mixture was heated at a temperature of 90° C. for one hour, cooled, and then filtered. White crystals were obtained in an amount of 58.0 g. The crystals had a melting point of 166° C.

1. customA three-necked flask equipped with a dropping funnel
2. customWhile the resultant reaction solution
3. customDuring the stirring, an exothermic reaction
4. customa large amount of white solid was precipitated
5. customThe resultant reaction mixture
6. temperaturecooled
7. filtrationfiltered
8. customWhite crystals were obtained in an amount of 58.0 g