反应详情

A mixture of 18.8g (0.05 mole) of 2,7-bis(4-chlorobutyryl)fluorene, prepared in Example 1, 34.0g (0.4 mole) of piperidine, 16.6g (0.1 mole) of potassium iodide in 200 ml of butanone was stirred and refluxed for three days. The reaction mixture was poured into 1000 ml of water, and the solid which precipitated was filtered and recrystallized twice from chloroformacetone to give the desired product. M.P. 157°-159° C, λmax0.1NHCl 325, Elcm1% 816.

1. temperaturerefluxed for three days
2. customthe solid which precipitated
3. filtrationwas filtered
4. customrecrystallized twice from chloroformacetone