Sintesi del 4-MMC (mefedrone). Video tutorial completo.

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Entrambi funzionano e sono ottimi.
 

round2

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Hi Marvin
Great video and I have successfully synthesized 4mmc using this synthesis, thanks. Worked beautifully when acidified with hcl35 but using hbr48 turned out to be a disaster..is hbr not interchangeable with hcl for acidification of 4mmc in benzene?
 

round2

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Btw I used DMSO instead of nmp for the second round
 
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C10H11BrO + CH5N → C11H15NO + HBr
Come si evince dall'equazione, una molecola di 2-bromo-4-metilpropiofenone produce una molecola di mefedrone.
C10H11BrO : 227,0977 g/mol
C11H15NO : 177,2429 g/mol
227.0977/177.2429=1.28127953
Il coefficiente è 1,28127953
Ciò significa che da 100 g di 2-bromo-4-propiofenone si ottengono 78,0469818 g di mefedrone base.

La massa del cloridrato di mefedrone aumenterà di 1,19 g/cm3 e il coefficiente sarà 1,27273446
C11H15NO+HCl=177.2429+1.19=178.4329
227.0977/178.4329=1.27273446

100g(C10H11BrO)/1.27273446=78.5709849g(C11H15NO)
La resa teorica della reazione del 2-bromo-4-metilpropifenone è stata di 78,5709849g di mefedrone cloridrato. Bisogna però considerare che è difficile raggiungere la resa teorica, di solito la perdita è del 20%.
 
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Bazooka90

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Ho trovato un fornitore di 2-bromo-4-metilpropiofenone liquido, ma non so come partire da questo punto e quanto liquido dovrei usare per fare 100 g di 4mmc.
 

Nsowonxmd

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A Bych. Non l'ho fatto. In un liquido. Buono. Grani di pepe
 

William D.

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Non qualitativamente purificato, o poco tempo per la reazione. Sono necessari maggiori dettagli.
 

whitelabel

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Greetings

4mp to 4mmc successfully this way for me but starting 4mp was yellow so bromination done as per process.

Resultant mephedrone was a pasty powder and not crystal like salt as in video. Power was also low even after crystallization. Any thoughts on the pasty powder and low power. Yield was about 120 gms recrystallized from 400 ml 4mp.

Is there any way to purify the 4mp we get to start with or is that fine?

Would a superior product be possible if 4mp is brominated using NBs and PTSA, purified with a solvent nd then make the nmp synthesis from that 2b4m?

Thanks in advance. Tc
 

Tsigger

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Non ho aggiunto acetone, ma solo MMC freebase in benzene, e ho versato il 30% di HCl a pH 5,5. Ho aggiunto l'acido lentamente. Ho aggiunto l'acido lentamente. Potrebbe essere l'acetone il problema? Me ne sono dimenticato, perché di solito acidifico con DCM+acqua, quindi l'acetone non mi è venuto in mente. Come hai acidificato la bellezza della foto? Grazie mille.
 
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goatlabs666

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Grazie fratello
 

goatlabs666

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One question, im new in chemical. What Is NMP? Im sorry for the stupid question…
 

loadingST

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N-methyl-pyrrolidine and its toxic to the fertility be awere.
 

NieDoswiadczony

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  • WODA BROMOWA
  • Nazwa odczynnika (ang.): Bromine water
  • Gatunek: czysty
  • Wzór sumaryczny: Br2
  • Masa molowa [g/mol]: 159,82
  • Pojemność [ml]: 1000
  • Numer WE: 231-778-1
  • Numer CAS: 7726-95-6
  • Zawartość [%]: 4is it suitable for synthesis
 

had3s

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Awesome tutorial!

I have question. Can be this tutorial used for 3-CMC or 3-MMC?
 

Amorking

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had3s

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I'm using 2-bromo-4-methylpropiophenone for 4-MMC. What to use for 3-MMC?
 

dodobird

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@Marvin "Popcorn" Sutton can we scale this up using a 50litre batch reactor and drop the bromine Benzene mix from the reactors dropping funnel without any issues?
Bromine mix in an enclosed dropping funnel is a litle scary
 

santi

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dodobird

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Your reply is not clear please explain. What you said exactly
 

santi

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