Filemon
Hazard to Others
Posts: 126
Registered: 26-4-2006
Member Is Offline
Mood: No Mood
|
|
nitrostyrene
I don't understand the synthesis proposed in Rhodium. For that so much cold? Would not it harm the dehydration and therefore the formation of the
insaturate?
http://www.erowid.org/archive/rhodium/chemistry/nitrostyrene...
|
|
|
chochu3
Hazard to Others
Posts: 185
Registered: 21-10-2003
Location: South Side Tejas [Cloverland]
Member Is Offline
Mood: Inside looking out
|
|
Organic Syntheses, Coll. Vol. 1, p.413 (1941); Vol. 9, p.66 (1929). has a few notes about this rxn.
[Edited on 29-6-2007 by chochu3]
\"Abiding in the midst of ignorance, thinking themselves wise and learned, fools go aimlessly hither and thither, like blind led by the blind.\" -
Katha Upanishad
|
|
|
garage chemist
chemical wizard
Posts: 1803
Registered: 16-8-2004
Location: Germany
Member Is Offline
Mood: No Mood
|
|
Its to keep the nitromethane from being degraded by the sodium hydroxide. The strong cold is very important with this method of preparation. This is
not the case with the more known methods of nitrostyrene synthesis, e.g. with an amine catalyst.
Actually, the method you posted prepares the sodium nitroalcoholate in the cold first, and the elimination of water to form nitrostyrene only happens
when the mixture is poured into HCl as in the preparation.
|
|
|
Filemon
Hazard to Others
Posts: 126
Registered: 26-4-2006
Member Is Offline
Mood: No Mood
|
|
How can one obtain the sodium salts of nitromethane (I mean to isolate them)?
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
