Sinteza mefedronei (4-MMC) din halocetonă în acetat de etil. Scala 1-10 kg.

[StarWars]

8. După aceea, amestecul este încălzit până la 55
în videoclip se spune clar că nu este nevoie să se încălzească. și aici cineva a scris să se încălzească apoi pentru ce dacă amestecul ajunge la temperatura în sine nu mai mare de 65 °.

 

[G.Patton]

Hi, 55 deg *C este necesar pentru evaporarea în vid a solvenților și a excesului de metilamină. Este o procedură opțională.

 

[goku1008]

can i skip this i dont have vacuum systume
and plz give me your screenshot video link plz

 

[G.Patton]

This video in the topic, dude...
Yes, you can separate layers without vacuum. There is this information in the screenshot.

 

[goku1008]

Stage 2
4. The stirring is stopped. The reaction mixture is left for layer separations. A bottom layer is drained through a bottom reactor tap.

I'm asking ethyl acetate is light solvent and 2b4m is heavy so why we need to drain bottom layer
If we drain bottom layer then only ethyl acetate left in flask
Help me on this plz plz

 

[goku1008]

stage 2
3. The mixture is stirred until complete amount of 2-bromo-4'-methylpropiophenone (cas 1451-82-7) is dissolved.
4. The stirring is stopped. The reaction mixture is left for layer separations. A bottom layer is drained through a bottom reactor tap.


my qustion is in video bro do this step after mixing water .but in method layer happen after 2-bromo-4'-methylpropiophenone dislove in ethyal cant understand this point

 

[G.Patton]

Hello, I edited the write up. You should separate layers at step 7.

 

[goku1008]

in vidoe after addingmethylamine 40% Colour change green red brown happened. Im asking is that same happen with 2b4m
also in video stating they said bk/ik .
is bk means 2b4m and ik mens 2i4m

 

[Naruto]

No

 

[goku1008]

then explain what is bk/ik ?

 

[Naruto]

Is other precursor and on 2b4m oil is yellow is is green then no all 2b4m work good

 

[G.Patton]

2-Bromo-4'-methylpropiophenone
2-Iodo-4'-methylpropiophenone
These are two different 4-MMC precursors. Please, look through the Methcathinones section topics before ask next question!