Síntese de 4-MMC (mefedrona). Tutorial completo em vídeo.

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Ambas funcionam e ambas são boas.
 

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
Como se pode ver na equação, uma molécula de 2-bromo-4-metilpropiofenona produz uma molécula de mefedrona.
C10H11BrO : 227,0977 g/mol
C11H15NO : 177,2429 g/mol
227.0977/177.2429=1.28127953
O coeficiente é 1,28127953
Isto significa que, a partir de 100 g de 2-bromo-4-propiofenona, obtém-se 78,0469818 g de mefedrona base.

A massa de cloridrato de mefedrona aumentará em 1,19 g/cm3 e o coeficiente será 1,27273446
C11H15NO+HCl=177.2429+1.19=178.4329
227.0977/178.4329=1.27273446

100g(C10H11BrO)/1.27273446=78.5709849g(C11H15NO)
O rendimento teórico da reação da 2-bromo-4-metilpropiofenona foi de 78,5709849g de cloridrato de mefedrona. No entanto, deve ter-se em conta que é difícil atingir o rendimento teórico, normalmente a perda é de 20%.
 
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Bazooka90

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Encontrei um fornecedor de líquido de 2-Bromo-4-Metilpropiofenona mas não sei como começar a partir deste ponto e que quantidade de líquido devo usar para fazer 100g de 4mmc. Preciso de alguns conselhos.
 

Nsowonxmd

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Para bych. Eu não fiz. Num líquido. É bom. Pimenta em grão
 

William D.

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Não é qualitativamente purificado, ou tem pouco tempo para a reação. São necessários mais pormenores.
 

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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Não adicionei acetona, apenas MMC freebase em benzeno, e pinguei HCl a 30% com pH 5,5. Adicionei o ácido lentamente. Poderá ser a acetona o problema? Esqueci-me, porque normalmente acidifico com DCM+água, por isso não me veio à cabeça a acetona. Como é que acidificou a beleza da imagem? Muito obrigado.
 
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goatlabs666

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Obrigado irmão
 

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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