反应详情

A 4 g. sample of ethyl 4-[13-(4-chlorophenyl)-12-tridecylamino]benzoate is hydrolyzed with 1.6 g. 85% potassium hydroxide in 60 ml. 95% ethanol by refluxing the solution for 5 hours. The solution is cooled, diluted with 100 ml. water and acidified to pH 4.5 with 37% hydrochloric acid. The precipitate is collected, dried in vacuo and crystallized from acetone to yield the title compound as a white powder.

1. temperatureThe solution is cooled
2. additiondiluted with 100 ml
3. customThe precipitate is collected
4. customdried in vacuo
5. customcrystallized from acetone