Mefedrona (4-MMC) sintēze [2B4M, etil acetāts, metilamīna HCl]

dodobird

Don't buy from me
Member
Language
🇺🇸
Joined
May 27, 2024
Messages
2
Reaction score
1
Points
3
@gpatton, lūdzu, pastāstiet šim nūbim (man), kāda loma šajā sintēzē ir NAOH un nātrija bikarbonātam. Pateicos par atbildi.thanks
 

Osmosis Vanderwaal

Moderator in US section
Resident
Joined
Jan 15, 2023
Messages
1,640
Solutions
4
Reaction score
1,171
Points
113
Deals
1
117,6 % no 2-b-4-mp summas. Jūs man uzrakstiet aprēķinu. ( padoms: tas ir smagākais elements, kas dalīts ar vieglāko elementu.
 

WillD

Expert
Joined
Jul 19, 2021
Messages
783
Reaction score
1,073
Points
93
Kā citā tēmā rakstīja Hanna520, šai sintēzei labāk ir sagatavot alc. metilamīnu. Jums būs mazāk problēmu, kas saistītas ar etilacetāta hidrolīzi. Var izmantot trietilamīnu, etanolu vai metanolu, vai THF. Iegūstiet gāzes šķīdumu un sāļu nogulsnes bez ūdens. To ir viegli atdalīt, dekantējot, un jūs varat veiksmīgāk sākt sintēzi. Nelieliem daudzumiem tas parasti nav problēma, bet, ja vēlaties sintezēt vairākus kg vienlaikus, būs ievērojami atšķirīgi.
 

goku1008

Don't buy from me
New Member
Language
🇺🇸
Joined
Nov 27, 2024
Messages
8
Reaction score
2
Points
3
2b4m is bk ?
2i4m is ik im i right
 

Naruto

Don't buy from me
New Member
Language
🇬🇧
Joined
Nov 28, 2024
Messages
12
Reaction score
0
Points
1

goku1008

Don't buy from me
New Member
Language
🇺🇸
Joined
Nov 27, 2024
Messages
8
Reaction score
2
Points
3
thanks man
 

mcdonalds

Don't buy from me
Resident
Language
🇺🇸
Joined
Jul 3, 2024
Messages
5
Reaction score
1
Points
3
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

Professional
Manufacturer Seller
Language
🇬🇧
Joined
Nov 28, 2023
Messages
234
Reaction score
141
Points
43
Deals
17
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.
 
Top