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Assured Fish
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Yup. Also UC235 made a video on it.
Although im pretty sure the process stinks to high heaven just based on the fact that polystyrene always contains other additives, someone could do it
that way if they wish, as 350°C isn't too hard to reach with heating tape or a burner.
Id just pitty the fool who tried without a fumehood.
Sufficiently advanced science is indistinguishable from madness.
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Keras
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Quote: Originally posted by Assured Fish  | Yup. Also UC235 made a video on it.
Although im pretty sure the process stinks to high heaven just based on the fact that polystyrene always contains other additives, someone could do it
that way if they wish, as 350°C isn't too hard to reach with heating tape or a burner.
Id just pitty the fool who tried without a fumehood. |
350 °C could even be reached with a good heating mantle. But I’m surprised he didn't get more tar.
But using styrene to epoxide it (with peracetic acid) is more or less the same than using oxirane from the get go. It seems that oxirane can be
produced in one step from ethylene by bubbling it in a strongly basic bleach solution. The hypochlorite oxidise the ethylene to 2-choloroethanol which
is then dehydrated into oxirane by the base. Besides this reaction can be conducted around 0°C which would avoid the formation of oxirane gas. It’s
hard to find a reference, but this Japanese patent seems to indicate so…
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CuReUS
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its more like 2000'C http://www.sciencemadness.org/talk/viewthread.php?tid=22421&...
the only way to make 2-phenylethanol from styrene oxide is with reducing agents like Pt,Pd,SAH,DIBAL-H and LiH -http://www.escience.cn/system/file?fileId=96971
using NaBH4-https://www.tandfonline.com/doi/abs/10.1080/0039791090307960...
but this route is cumbersome and goes against the OP's desire for an easy method You wouldn't be if you had watched the video I sent you 
| Quote: | | Besides this reaction can be conducted around 0°C which would avoid the formation of oxirane gas. |
but you
have to distill it later to get pure oxirane  ...
btw,I found a ref for the anti-markonikoff bromination of styrene  -http://www.sciencemadness.org/talk/viewthread.php?tid=22421&...
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clearly_not_atara
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https://www.tandfonline.com/doi/abs/10.1080/00397911.2017.12...
Attachment: bhatt2017.pdf (658kB)
This file has been downloaded 375 times
[Edited on 04-20-1969 by clearly_not_atara]
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Keras
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Thanks a bunch for that! Serendipitously I had just ordered zinc powder with my latest batch of magnesium turnings. So I’ll be able to test that out
next time I can put my hands on my glassware. Meanwhile I should find a way to get paraformaldehyde from the 40% formaldehyde solution I have.
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SWIM
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Styrene thinner is available in California in shops that sell fiberglass making materials.
I think it is used at times to thin the resin.
What I know for certain is it is on the shelf in cans at Tap Plastics in San Mateo, and since California has serious environmental regulations I would
assume its available in most of the US.
I've seen it online too. It is 90% styrene monomer and $25 a quart from Fiber Glast Developments corp. (That's not a typo)
They are in Ohio.
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draculic acid69
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Diazotise phenethylamine with nano2 and HCl.its that simple.i think.
No need to fuck with etO.
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Assured Fish
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No, its more like 400*C : https://www.youtube.com/watch?v=6tEs7P6UUVQ
https://en.wikipedia.org/wiki/Depolymerization
Yea i should know better, im gonna put that down to a brain fart.
Well if anyone is interested, (which i don't think they are).
The styrene at my work is this stuff: https://www.amcsupplies.com.au/manuals/Styrene%20Monomer%20-...
![20190531_090800[1].jpg - 2MB](http://www.sciencemadness.org/talk/files.php?pid=614084&aid=75738)
Probably only available in australia and new zealand, but im sure other similar products are available elsewhere.
Apparently it has a hell of a lot more than one use, as it solvates a few other plastics like PVC.
Or its just used as a generic adhesive or in making ABS resins.
It should be available in virtually any westernized part of the world.
It just won't be the easiest to track down.
Sufficiently advanced science is indistinguishable from madness.
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Keras
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I'd need to make phenethylamine first :p
I think I’ll try the zinc route first, seems challenging… although it takes a bit of time.
For styrene, I surmise it’s been registered in the European REACH directive annex XVII (can’t check out, the related website seems to be dead) and
phased out in commercial products, to be replaced by the less noxious ethyltoluene/vinyltoluene, a bit the same way benzene has been replaced by
toluene, which is not as carcinogenic.
Also this patent claims to make styrene out of toluene and methanol.
[Edited on 31-5-2019 by Keras]
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Waffles SS
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My advise:
"Dont trust to Indian or Iranian or even Chinese articles"
(unfortunately i did this mistake many times)
I have experience on making Phenethyl alcohol from Phenylacetic acid ester by Bouveault-Blanc reduction and this is easiest and cheapest method.
Suggested method for synthesis Phenylacetic acid is Willgerodt-Kindler reaction from Styrene.
I attach reaxys search of all possible way for synthesis Phenethyl alcohol
Attachment: Phenethyl alcohol.pdf (2.3MB)
This file has been downloaded 1505 times
[Edited on 31-5-2019 by Waffles SS]
Chemistry = Chem + is + Try
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Keras
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I don't trust Chinese material in general
| Quote: Originally posted by Waffles SS |
I have experience on making Phenethyl alcohol from Phenylacetic acid ester by Bouveault-Blanc reduction and this is easiest and cheapest method.
Suggested method for synthesis Phenylacetic acid is Willgerodt-Kindler reaction from Styrene.
I attach reaxys search of all possible way for synthesis Phenethyl alcohol
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Thanks for that. I'm still amazed that most of these reactions proceed from something more complex and take out a moiety to form phenethyl alcohol, as
if it was impossible to synthesise from simplier molecules.
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draculic acid69
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Why would you need to make phenethylamine just buy it off eBay or alibaba.by the time you buy phenylalanine and decarboxylation catalyst and work it
up,or if your making it from phenethylbromide(unlikely) it can't possibly be cost effective to make it rather than buy it.
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clearly_not_atara
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Indian research is certainly suspect, except the best Indian universities. But the formation of benzylzinc reagents and the addition of benzylzinc to
aldehydes are both multiply attested. Reaxys showed another version of this reaction that uses water as a solvent with catalytic CdCl2 and InCl3:
https://www.thieme-connect.com/products/ejournals/abstract/1...
There may be other versions that use BnBr instead of BnCl to generate the BnZnX, since the bromide is usually better for these reactions.
[Edited on 04-20-1969 by clearly_not_atara]
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CuReUS
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In that case,the OP could just buy
phenylethanol itself | Quote: Originally posted by Keras |
For styrene, I surmise it’s been registered in the European REACH directive annex XVII (can’t check out, the related website seems to be dead) and
phased out in commercial products, to be replaced by the less noxious ethyltoluene/vinyltoluene, a bit the same way benzene has been replaced by
toluene, which is not as carcinogenic.
|
If you can't buy it in from stores near you,you could order it online from one of the fibreglass companies
I suggest you get your hands on some styrene by hook or by crook because I just found a crazy reaction in waffle's reaxy search (pg 59 of pdf) -https://pubs.rsc.org/en/content/articlelanding/1982/p2/p2982... (they claim to convert styrene to PEA using H2SO4 in ethanol
at RT in 56% yield  )
You can't make it easier than that .
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Corrosive Joeseph
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Paper delivery........
https://pubs.rsc.org/en/content/articlelanding/1982/p2/p2982...
Ellis, G. W. L., & Johnson, C. D. (1982).
Kinetic acidity function H c. Part 3. Applicability to hydration of styrenes.
Journal of the Chemical Society, Perkin Transactions 2, (8), 1025.
/CJ
Attachment: ellis1982.pdf (332kB)
This file has been downloaded 317 times
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Pumukli
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That D-glucose, oxygen in aq. phosphate buffer, Time=8h, T=30oC, Green chemistry, regioselective reaction also sounds interesting!
[Edited on 1-6-2019 by Pumukli]
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Keras
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Could styrene be made reacting PhMgBr with vinyl chloride?
Also thanks for the papers!
[Edited on 2-6-2019 by Keras]
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Corrosive Joeseph
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No worries.
Easiest route to styrene monomer -
https://www.viral-surf.com/en/243-monomer-styrene-1-liter-52...
and phenethylamine -
https://www.bulksupplements.com/phenylethylamine-hcl.html
/CJ
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Keras
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Thanks! The first company is in France, that will ease the process a lot!
Also, just as a side note, if you upload articles, which is very kind, try not letting the name of the uni on the margin. That could compromise you,
and I'd be very unhappy about that.
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