Opylation
Hazard to Others
Posts: 131
Registered: 30-8-2019
Member Is Offline
|
|
Acrylic acid/methyl acrylate via sandmeyer
So I have been trying to think of a few ways to produce acrylic acid or methyl acrylate and the first way I thought of was to perform a mixed aldol
condensation between acetone and paraformaldehyde. After trying to fractionally distill the methyl vinyl ketone I ended up with polymerized crap in my
rbf and very minor amount of product, mostly acetone with maybe some MVK. My next step would be a haloform reaction but at this point I feel like it
would be best to abandon that endeavor.
However, an easier route I have been looking into would be a sandmeyer reaction between b-alanine or b-alanine methyl ester. This would produce
3-hydroxypropionic acid or the methyl ester which upon distillation would form the desired product. Is this a feasible way of producing acrylic acid
or it’s esters?
[Edited on 5-3-2020 by Opylation]
|
|
|
draculic acid69
International Hazard
Posts: 1371
Registered: 2-8-2018
Member Is Offline
|
|
Just buy them
|
|
|
Dr.Bob
International Hazard
Posts: 2757
Registered: 26-1-2011
Location: USA - NC
Member Is Offline
Mood: Mildly disgruntled scientist
|
|
Acrylates are quite reactive and can polymerize or react further easily in many cases, so in many case they are hard to purify or store, but often are
simply used in-situ or at least distilled directly into some sort of stabilizer or anti-oxidant. They (methyl acrylate in particular) are also
horrible to smell and quite toxic, so I try to avoid them unless absolutely nothig else works. But they do work well for a few things. You will
need to distill right into the next step in many cases or stabilize the material if you don't want a flask full of acrlic polymer.
|
|
|
Opylation
Hazard to Others
Posts: 131
Registered: 30-8-2019
Member Is Offline
|
|
I may just buy acrylic acid and it’s esters. The only thing is it is so expensive for a very minor amount. I was also thing of maybe producing
acrolein from glycerol and then performing a pinnick oxidation.
|
|
|
draculic acid69
International Hazard
Posts: 1371
Registered: 2-8-2018
Member Is Offline
|
|
Quote: Originally posted by Opylation  | | I may just buy acrylic acid and it’s esters. The only thing is it is so expensive for a very minor amount. I was also thing of maybe producing
acrolein from glycerol and then performing a pinnick oxidation. |
Nilered did a video on it.
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
