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Wolfram
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Leuckart reaction
The leuckart reaction is used to produce amphetamine on huge scale in eastern Europe could someone write the reaction. What is actually happening?
[Edited on 7-9-2009 by Polverone]
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vulture
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20s of google searching:
http://themerckindex.cambridgesoft.com/TheMerckIndex/NameRea...
I'm getting fed up with that lazy attitude of yours.
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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Wolfram
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OK thanx mr. Vulture
OK thanx mr. Vulture but could you tell me why ammuniumacetate doesn´t work?
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unionised
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Because it's not a formate. That means it's not an aldehyde and so it's a lousy reducing agent. (didn't you spot the CO2 as a
product?)
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vulture
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formate = salt of formic acid, methanoic acid.
That's not an aldehyde.
Formaldehyde is an aldehyde.
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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unionised
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Thanks, but I knew that anyway.
X-CHO is an aldehyde.
HO-CHO is an aldehyde.
Formic acid is an aldehyde as well as an acid.
Formic acid gives a positive reaction with Tollen's reagent and Fehling's solution.
It's an unorthodox point of view, but it explains the fact that acetate dosn't work.
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vulture
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Aah I see what you're getting at. Indeed one could consider formic acid as an aldehyde too.
One shouldn't accept or resort to the mutilation of science to appease the mentally impaired.
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Wolfram
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Sorry I ment if acetamide (not amoniumacetate) does work instead of ammoniumformate?
What is the usual way to P2P in eastern europe?
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narkar
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does aybody know the synt of this ketone. C6H5CH2COCH3
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acx01b
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hey
I have a question i never founded the answer:
CH3-CO-CH2Cl + C6H5MgBr
the ketone reacts 1st ?
(to yield after hydrolysis 2-Phenyl 1-chloro Propan-2-ol)
or not ? :-)
and by the way 2-Phenyl 1-chloro Propan-2-ol would react on water too..
[Edited on 6-5-2004 by acx01b]
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Ephoton
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kill this thread mine was nothing like this.
it brakes all the rules.
at least mine was or though with some mistakes with the ideas too LAH not against the
rules of the site.
e3500 console login: root
bash-2.05#
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brew
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Just curious but what does BMK stand for.
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ScienceSquirrel
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| Quote: | Originally posted by brew
Just curious but what does BMK stand for. |
Benzyl methyl ketone, another name for 1-Phenyl-2-propanone.
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Nicodem
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| Quote: | Originally posted by Ephoton
kill this thread mine was nothing like this.
it brakes all the rules.
at least mine was or though with some mistakes with the ideas too LAH not against the
rules of the site. |
Please discuss complaints about moderation either via U2U or in the Forum matters section. Besides, this thread is from 2003 and was resuscitated by
Bluetooth without any solicitation or question on the topic, so your comparison to whatever action taken against any of your posts/threads is not
really relevant. This thread does not break any forum rule. It is however not particularly informative, but for now that by itself is no reason to
just "kill" it (though if it was a recent one it would go to Beginnings due to the laziness of the original poster in searching for any information on
the topic prior to asking others to do so).
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Bluetooth
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There is a patent about the leuckart reaction that claims the leuckart reaction with a catalyst. They illustrate te amination of benzophenone with
6mol equivalent formamide and small amount MgCl2 at 170-190C under N2 atmosphere. After 4 hours and the product was isolated in a yield 95,6%.
The same experiment repeated with out catalyst under the same conditions gave a yield of only 21.7%.
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Sauron
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Patent number, name of inventor, date, country? It's customary to cite these things.
Sic gorgeamus a los subjectatus nunc.
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JohnWW
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A search suggests that this is probably the patent Bluetooth means, but using boric acid or AlCl3, which were found to be superior, instead of MgCl2:
http://www.freepatentsonline.com/4851548.html (1989)
Here is a related one:
http://www.freepatentsonline.com/6596861.html
See also, besides erowid:
http://www.geocities.com/methamphetamine_x/
http://saevarr.com/drugs/Chrystalmeth/amphetamine.reduction....
The Leuckart reaction involving benzophenone and formamide, catalyzed by MgCl2, was described 40 years earlier. in Webers et al, JACS 70, 1422-4(1948)
and Bunnett et al, JACS 71, 1587-9(1949). Someone with the necessary online access, please find and upload these articles.
[Edited on 28-12-08 by JohnWW]
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mr_burns
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The route to P2P using in eastern europe? Chemical companies, money, and guns. I read an interview with a DEA agent recently where he said that
almost all E made in eastern europe was made from commercial MDP2P.
And if you actually wanted to make amphetamines, the leuckart is a ridiculously temperamental reaction to actually run. Wiki has a great overview of
the reaction, just mentally substitute P2P in.
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sparkgap
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sparky (^_^)
"What's UTFSE? I keep hearing about it, but I can't be arsed to search for the answer..."
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Sauron
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My intention was not to solicit assistance for meth cooks. They can all go to hell. My intention was to prod bluetooth to post like a chemist, citing
his sources rather than merely scattering bits of random information around in a long defunct thread.
Sic gorgeamus a los subjectatus nunc.
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kmno4
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| Quote: | Originally posted by mr_burns
The route to P2P using in eastern europe? Chemical companies, money, and guns. |
Mostly from People's Republic of China
Another way is comonly known catalytic ketonisation - the simple
and cheap method.
A few days ago I saw pictures on TV from "laboratory" (just shed in the boonis) - all they showed was a fragment of pipe (tube) reactor and yellow
something (yes, yes.... ) in a flask (placed in electrical heater) ready for Leucart (probably).
A few years ago, our police arrested men wanting to produce known ketone on almost industrial scale, hah. They have completed aparaturus but not yet
running. Probably they wanted too much and unfair competition gave police a bell
Why Leuckart ?
Simple, cheap, clean, easily scaled up. My country is one of the famous producers of sulfate of known amine (mostly not methylated),from known ketone
by this method.
I am not specially proud of it 
Some lady told me that selling of ammonium formate was (is ?) strictly monitored, just because of Leuckart. But ammonia (or its carbonate) or formic
acid are not specially controled. Stupid - isn't it ?
[Edited on 29-12-2008 by kmno4]
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Bluetooth
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| Quote: | Origineel gepost door sparkgap
sparky (^_^) |
[bewerken aan 2-1-2009 door Bluetooth]
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Bluetooth
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| Quote: | Origineel gepost door mr_burns
The route to P2P using in eastern europe? Chemical companies, money, and guns. I read an interview with a DEA agent recently where he said that
almost all E made in eastern europe was made from commercial MDP2P.
And if you actually wanted to make amphetamines, the leuckart is a ridiculously temperamental reaction to actually run. Wiki has a great overview of
the reaction, just mentally substitute P2P in. |
Hey but i'm from the netherlands, or from HEERLEN AND my name isn't MAE BeeOK
[bewerken aan 2-1-2009 door Bluetooth]
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Bluetooth
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Here is the document i was talking about :
http://www.google.com/patents?id=k-BHAAAAEBAJ&printsec=d...
[bewerken aan 14-1-2009 door Bluetooth]
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twodogs
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I wonder how this works. Notice it is non microwave!
http://www.articlearchives.com/science-technology/chemistry/...
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