Syntéza mefedrónu (4-MMC); jednoduché vykonávanie - vysoká výťažnosť

cartelloszetas

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Môže to byť oveľa rýchlejšie a nemusíte používať laboratórne vybavenie. Vidím, že u urobil pre zábavu, ak u bude musieť urobiť týmto spôsobom u musieť zaplatiť veľa monay pre zariadenia.
Používate tiež príliš veľa chemikálií.
Keď hodíte kyselinu, váš prášok musí byť biely, nie ako kokaín. Vo veľkom meradle potom používate príliš veľa acetónu a strácate veľa času na umývanie prášku.
Pri použití dcm môžete získať 81 % prášku, 75 % kryštálu.
 
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sksameer1

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Plse dear explain emijetly fast your recipe....Čakám tu
 

sksameer1

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Plse dear explain emijetly fast your recipe....Čakám tu
 

tucoXxX

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Chcem takmer 1 kg hotového výrobku. môžem ho vyrobiť z 3x väčšieho množstva činidiel?
 

olduser

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lepšie je vziať x4 : 2Kg bromoketónu, niektorí ľudia nedosiahnu ani 50% výťažok + ak ho chcete v kryštálovej forme, váš výťažok sa zníži
 

HerrHaber

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Nedávno som dosiahol väčší ako vypočutý výťažok hydrochloridu 4MMC vo chvíli, keď som to očakával najmenej. Predtým, ako to zverejním všetkým, mám pocit, že je potrebných viac ako len 5 sérií (z 5 sérií boli 2 po sebe idúce s vysokým výťažkom, potom 2, o ktorých som si myslel, že sa zlepšia, ale nezlepšili sa, a ďalšia tvorí trojnásobok potrebný na to, aby som to mohol uviesť). Avšak vyčerpal som veci a teším sa na to, že to úplne zdokumentujem s fotografiami a všetkým. A aby som nebol odsúdený za zadržiavanie "cenných" informácií, môžem vymeniť niektoré protichodné detaily prípravy:

-Kľúčové je miešanie (aby boli vrstvy DCM a vody v čo najtesnejšom kontakte bez katalyzátora fázového prenosu)
-relatívne dlhý reakčný čas (približne 6 až 8 hodín, využívam prestávku, keď len pozastavím miešanie, pričom predpokladám, že ak sa vrstvy oddelia, reakcia sa takmer zastaví)
-nepoužívanie tepla (môj tretí a štvrtý pokus mal priemerné a nižšie výťažky, keď sa použilo jemné zahrievanie)
-chladenie zmesi a činidiel (v kroku okyslenia boli chladené kvapaliny s najlepšou výťažnosťou)
-rýchle filtrovanie (hneď po vyzrážaní pevných častíc, nenechajte ich zostať, pretože časť produktu prejde do roztoku)

Dúfam, že to pomôže a sľubujem, že sa vrátim s podrobnosťami a prečo nie, overenie od ďalšieho aktívneho člena.
 

mcdonalds

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hello,
i'm not sure why condenser is used in this syntessis.
is correct that is for condense methylamine gas and keep it in the reaction
 
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Naruto

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olduser

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yes, but as methylamine is already in excess I guess it's used to reduce the smell
 

HerrHaber

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yes, but harmful even more so
 

William D.

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If you use cooling with liquid nitrogen, the reaction mixture in the flask would simply freeze :) . Therefore, only an excess that is filtered or evaporates into the atmosphere
 

Ranbir Singh

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How can change mephedrone powder to crystel form please tell me
 

agness

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Can I use a Ethyl acetate instead of Dichloromethane?
 

lucky2222

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hello thank you for info knowledge was wonder on the sop if you had methylamine HCL instead of methylamine 40%aq what step would you use instead to make it a liquid ? thank you again for your time
 

Noe

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William D.

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@lucky2222 there is a lot of information on this forum about this. You can use water or alcohol with sodium hydroxide or triethylamine to produce gas. Triethylamine is more convenient in some cases if it is available to you.
 

Blazey

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nice, i missed out on this chem before the bans in the uk, glad to see its around still, i wanna try it me as I love mdma
 

lucky2222

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hello was wondering if there away to substitute methylamine 40%aq with methylamine hcl in this sop ?
 

Rhales

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olduser

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Sry I don't understand clearly your question. The addition of water is used to dissolve the polar impurities in the solution after the reaction (2B4M, methylamine, etc). You need to let it a few minutes then throw away all of the water, only the oil stays.
You can addapt the protocol to 3mmc aswell, you need to use 2-bromo-3-methylpropiophenone as main reagent and keep the same molar ratio (as they are isomers, you can keep the exact same amounts).
 

Rhales

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olduser

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If it's your first batch, I recommend using protocols that has been written by the forum experts. These are good too but hasn't always been tested and are more about experimentation once you already know the synth. WillD threads about mephedrone are really good
 
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