Синтез мефедрона (4-MMC) из галокетона в этилацетате. Масштаб 1-10 кг.

yin-yang

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N-метилацетамид должен быть растворим в ацетоне, хотя я не смог найти, насколько. Freebase действительно черный, а полученный порошок зеленеет при добавлении кристаллизующейся смеси растворителей (непрореагировавший кетон?). Можно предположить, что это не самая чистая процедура.

Некоторые клянутся, что любая другая реакция, кроме той, в которой в качестве растворителя используется NMP, дает гораздо, гораздо худшие результаты в конечном продукте. Больше скоростного кайфа без эйфории.

Вы проводили GC-MS, чтобы проверить, есть ли какие-либо примеси в полученном порошке/кристаллах?
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Wan Jack

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(6.The stirring is stopped. The reaction mixture is left for layer separations. A bottom layer is drained through a bottom reactor tap..)Because of the excess methylamine, the free base was washed more than 3 times with more than 2 times the deionized water.
 

StarWars

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8. После этого смесь нагревают до 55
В видео четко сказано, что нагревать не нужно. а здесь кто-то написал, что нужно потом нагревать, для чего, если смесь сама достигает температуры не выше 65°.
 

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G.Patton

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Здравствуйте, 55 град *C необходимо для вакуумного выпаривания растворителей и избытка метиламина. Это необязательная процедура.
4d1MKgRTyH
 

goku1008

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

G.Patton

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

goku1008

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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

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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

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

William D.

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When you received BK4, you must separate water with acid, which remained in the reaction mixture. To do this, we dissolve the BK4 and separate the residue of water.
 

goku1008

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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
 

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Naruto

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No
 

goku1008

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тогда объясните, что такое bk/ik?
 

Naruto

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Есть ли другой прекурсор и на 2b4m масло желтое есть зеленое то нет все 2b4m работают хорошо
 

G.Patton

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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!
 
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