反应详情

温度

160 °C

3.6 g of 4-[2-(1-oxo-isoindoline-2-carboxamido)-ethyl]-benzenesulfon-amide are carefully mixed with 2.5 g of trichloroacetyl-cyclohexyl amide and 2.8 g of potassium carbonate and the mixture is heated in a bath for 1 hour at 160° C. After cooling, the reaction mixture is treated with water and hydrochloric acid, filtered off with suction and the reaction product is reprecipitated from very dilute ammonia and recrystallized from dilute acetone. The N-(4-[2-(1-oxo-isoindoline-2-carboxamido)-ethyl]-benzenesulfonyl)-N'-cyclohexyl-urea obtained melts at 214°-216° C.

1. temperatureAfter cooling
2. filtrationfiltered off with suction
3. customthe reaction product is reprecipitated from very dilute ammonia
4. customrecrystallized from dilute acetone