Sinteza metkatinona (efedrona/βk-metamfetamina)

Anarchy Labz

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Poskusil sem narediti to sintezo in na koncu je bila videti in imela strukturo karamele. Kristalov sploh ni bilo. Uporabil sem tablete, ki so vsebovale koruzni škrob, povidon, laktozo in magnezijev stearat. Namesto v mikrovalovno vodo sem tablete dodal v etanol, nato pa sem etanol izparil in nastala je karamelna tekstura. Nato sem karamelnemu psevdoefedrinu dodala enako količino vode, kot je bilo navedeno v receptu. Nato sem naredil, kot je bilo navedeno v receptu, vendar se je sprememba barve pojavila takoj po 1-2 urah namesto po 8-10 urah. Vseeno sem počakal 8 ur, nato sem ga filtriral in pustil na pultu in nameraval sem dodati hcl, vendar nisem mogel, ker nisem bil doma, in na koncu sem ga dodal 3 dni po filtriranju mešanice. Dodal sem 1,5 žlice hcl, ki sem ga skušal preseči, ker takrat nisem imel ph trakov. Tekočino sem nato zavrela in spet mi je ostala snov, podobna karameli. Poskušal sem jo ponovno kristalizirati v acetonu, vendar ni šlo, še vedno je bila karamelna. Kaj je povzročilo neuspeh te sinteze? Ali so krive tablete, metoda ekstrakcije, prepozno dodan hcl ali premalo hcl? Ali pa mi je sinteza uspela in bi jo moral pustiti, da se še malo posuši? Prosim za pomoč.
 

SoldadoDeDrogas

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Could be the pills weren't extracted or properly enough. Or the final product was over acidified. I've never done this one as tina is better and reagents are more readily accessible.
 

Anarchy Labz

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I tried it a differen't time with proper ph management, I didn't extract the pills, I did it like in the synthesis, but when I evaporated the final mixture it was still caramel but when I added ethanol crystals came out and I separated them from the caramel and got like 2g of white crystals.
 

BlueDex

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Chemical equation: 2 NaHSO₃ + MnO₂ → Na₂SO₄ + MnO + H₂O
the balanced chemical equation is: 2 MnO + 2 NaHSO3 + H2O → 2 MnSO4 + Na2SO4 + 2 H2O.
Freebase Methcathinone is soluble in Hexane and Methcathinone HCl is soluble in water. So Methcathinone can be separated from MnSO4 and Na2SO4 into the Hexane layer.
Sodium Hydrogen Sulfite.
Reacidification with Muriatic Acid (30% HCl Acid).
 

GhostChemist

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This reactions is noncense in inorganic chemistry!
MnO can not be formed in this reactions and especially in solution

This reaction proceeds differently depending on the conditions

In H2O more likely to formed Mn(OH)2
If solution acidified of H2SO4 in the reaction formed MnSO4
And complex compounds can also be formed
 

BlueDex

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Cool! Methcathinone synthesis from Ehedrine.
 

BlueDex

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Misspelling. I meant Cool! Methcathinone synthesis from Ephedrine.
 
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