Syntes av mefedron (4-MMC) [2B4M, etylacetat, metylamin HCl]

dodobird

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@gpatton berätta för denna noob (mig) vilken roll NAOH och natriumbikarbonat spelar i denna syntes. Uppskattar ett svar.tack
 

Osmosis Vanderwaal

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117,6 % av 2-b-4-mp-beloppet. Du skriver beräkningen till mig. ( tips: det är det tyngre elementet dividerat med det lättare
 

WillD

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Som Hanna520 skrev i en annan tråd är det bättre att förbereda alkylmetylamin för denna syntes. Du kommer att få färre problem i samband med hydrolysen av etylacetat. Du kan använda trietylamin, etanol eller metanol eller THF. Få en lösning av gas och en fällning av salter utan vatten. Det är lätt att separera genom dekantering och du kan starta din syntes mer framgångsrikt. För små mängder är detta vanligtvis inte ett problem, men om du vill syntetisera flera kg åt gången blir det väsentligt annorlunda.
 

goku1008

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2b4m is bk ?
2i4m is ik im i right
 

Naruto

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goku1008

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thanks man
 

mcdonalds

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hello,
i sow in this post way for make reaction with Methylamine HCL ( no in 40% aqueous solution.
my question is because is more easy with hcl. Have differences with this dos ways?

is better follow the procedure with methylamine 40% aqueous solution prepared previously
or
add Metyliamine hcl directly to the mixture reaction like in this post

some one have tried both methods

Thanks for advanced
 

Dr. MMX

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usage of hcl methylamine is inproper in that case, it releases more impurties into the mixture, but in the reality of really bad aq 40% that is used in the market i believe its better solution for the new chemists or ptacticants.
Its better to make it urself the aq from the hcl.
 
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