反应详情

温度

100 °C

A mixture of 30 g. (0.07 mole) of 2,7-bis(5-chlorovaleryl)-xanthene, 2 g of potassium iodide, 100 ml. of piperidine, and 200 ml. of tetrahydrofuran was heated and stirred at 100°C. for 24 hours. After cooling, the tetrahydrofuran was evaporated off and the resulting mixture was poured into water. The resulting solid was filtered off and recrystallized twice from heptane to give the desired product after drying at 80°C. under vacuum. M.P. 129°-130°C.

1. additionA mixture of 30 g
2. temperatureAfter cooling
3. customthe tetrahydrofuran was evaporated off
4. additionthe resulting mixture was poured into water
5. filtrationThe resulting solid was filtered off
6. customrecrystallized twice from heptane