Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Recrystallization problems
morsagh
Hazard to Others
***




Posts: 187
Registered: 20-2-2014
Member Is Offline

Mood: No Mood

[*] posted on 8-3-2016 at 13:34
Recrystallization problems


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?
View user's profile View All Posts By User
Ozone
International Hazard
*****




Posts: 1269
Registered: 28-7-2005
Location: Good Olde USA
Member Is Offline

Mood: Integrated

[*] posted on 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]




-Anyone who never made a mistake never tried anything new.
--Albert Einstein
View user's profile View All Posts By User
Metacelsus
International Hazard
*****




Posts: 2537
Registered: 26-12-2012
Location: Boston, MA
Member Is Offline

Mood: Double, double, toil and trouble

[*] posted on 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.



As below, so above.

My blog: https://denovo.substack.com
View user's profile View All Posts By User
morsagh
Hazard to Others
***




Posts: 187
Registered: 20-2-2014
Member Is Offline

Mood: No Mood

[*] posted on 9-3-2016 at 09:33


It is room temperature, i will try hydrochloric acid.
View user's profile View All Posts By User

  Go To Top