Sciencemadness Discussion Board

Recrystallization problems

morsagh - 8-3-2016 at 13:34

I prepared 9-phenylacridine, 1,4-diacridinobutane and 9-methylacridine but i have problem with recrystallizing them out of EtOH solution, because everytime i get some liquid product. DonĀ“t you know how to get crystals of acridine derivates?

Ozone - 8-3-2016 at 14:39

Although the translation is poor (the images are better), you may have better luck isolating them in salt form:

http://www.google.com/patents/US1629873

O3

[Edited on 8-3-2016 by Ozone]

Metacelsus - 8-3-2016 at 16:28

In general, if a compound starts to come out of solution when the temperature is still above its melting point, you will get an oil instead of crystals. You might want to try using a different solvent system.

morsagh - 9-3-2016 at 09:33

It is room temperature, i will try hydrochloric acid.