Σύνθεση μεφεδρόνης (4-MMC) [2B4M, οξικός αιθυλεστέρας, μεθυλαμίνη HCl]

[Anarchy Labz]

Θα ήταν φοβερό να έχουμε ένα βίντεο αυτής της σύνθεσης

 

[Osmosis Vanderwaal]

Υπάρχει μία, στην ενότητα με τα βίντεο. Ακριβώς αυτό

 

[dodobird]

@gpatton παρακαλώ πείτε σε αυτό το noob(me) τι ρόλο παίζουν το NAOH και το διττανθρακικό νάτριο σε αυτή τη σύνθεση. Εκτιμώ μια απάντηση.

 

[Osmosis Vanderwaal]

117,6% του ποσού 2-b-4-mp. Γράψτε μου τον υπολογισμό. ( συμβουλή: είναι το βαρύτερο στοιχείο διαιρούμενο με το ελαφρύτερο.

 

[WillD]

As Hanna520 wrote in the another thread, it is better to prepare alc. methylamine for this synthesis. You will get fewer problems associated with the hydrolysis of ethyl acetate. You can use triethylamine, ethanol or methanol, or THF. Get a solution of gas and a precipitate of salts without water. It is easy to separate by decanting and you can start your synthesis more successfully. For small quantities this is usually not a problem, but if you want to synthesize several kg at a time it will be significantly different.

 

[goku1008]

2b4m is bk ?
2i4m is ik im i right

 

[Naruto]

Yes

 

[Anarchy Labz]

I thought it was bk4, bk is 2b1m right?

 

[goku1008]

thanks man

 

[mcdonalds]

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]

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.

 

[mcdonalds]

thanks so much