lolman172

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thanks mate video was amazing. but i need to ask you that its really hard to find 4-methylpropiophenone this sht here. what can i do ? instead of this chic ?
 

2FDCK-chef

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thanks mate video was amazing. but i need to ask you that its really hard to find 4-methylpropiophenone this sht here. what can i do ? instead of this chic ?
lolman1724-methylpropiophenone 1451-82-7
Is it this product?
 

Czeczeczecze

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I tried react 100g 2-bromo4methylpropiophenone with proportion 200ml methyloamine 40% and 300ml nmp. When last portion OF nmp was added, solution suddenly became yellow and clear, after 20min OF stirring it stays same, not browny and foggy like in the video. What I did wrong?
 

StarWars

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I tried react 100g 2-bromo4methylpropiophenone with proportion 200ml methyloamine 40% and 300ml nmp. When last portion OF nmp was added, solution suddenly became yellow and clear, after 20min OF stirring it stays same, not browny and foggy like in the video. What I did wrong?
CzeczeczeczeYour freebaasee is good what equipment u use
 
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Hank Schrader

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We brominate with the absorption of hydrobromic acid. Then we replace with methylamine and carry out the selection with further purification.
My synthesis takes approximately 3 hours from start to salt isolation. + crystallization.
Tried to crystallize in different ways. Nitrogen, thermoses, drying cabinets.
Rs4kVv8jPQ

BjNAaQBYJ8
IG9Ni3zHUa
 

Czeczeczecze

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We brominate with the absorption of hydrobromic acid. Then we replace with methylamine and carry out the selection with further purification.
My synthesis takes approximately 3 hours from start to salt isolation. + crystallization.
Tried to crystallize in different ways. Nitrogen, thermoses, drying cabinets.
View attachment 9319
View attachment 9318 View attachment 9320
Hank SchraderCan You specify Your synthesis? I want to obtain similar results. What equipment is needed etc
 
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Hank Schrader

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Can You specify Your synthesis? I want to obtain similar results. What equipment is needed etc
CzeczeczeczeIn order for mephedrone to come out correctly, you need to do all the steps correctly. In almost every method that I meet on the Internet, I find many wrong actions.
As a result, a person can receive 1 kg of mass, and after washing, lose up to 60-70%, and after crystallization, another part of the product.
Getting pure mephedrone hydrochloride snow-white powder, we crystallize in different ways. Sometimes a mixture of solvents sometimes gas chambers and a vacuum.
To be honest, I brominate 4-methylpropiophenone differently. I replace in 2 hours 30 minutes including cleaning.
If you have a mega powerful vacuum, you can overtake the base! But keep in mind, mephedrone, like all cathinones, does not like overheating! THEREFORE ONLY MEGAVACUUM! ))
 

Hank Schrader

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Can You specify Your synthesis? I want to obtain similar results. What equipment is needed etc
CzeczeczeczeAfter gaining access to the Research section, I will post an optimized synthesis of mephedrone with purity 99%+ and a yield close to 95% mole per 4-methylpropiophenone.
The technology is optimized for the kitchen and anyone who wants to have almost no smell will be able to receive mephedrone in huge quantities.
You have not tried this quality of mephedrone)
 

StarWars

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After gaining access to the Research section, I will post an optimized synthesis of mephedrone with purity 99%+ and a yield close to 95% mole per 4-methylpropiophenone.
The technology is optimized for the kitchen and anyone who wants to have almost no smell will be able to receive mephedrone in huge quantities.
You have not tried this quality of mephedrone)
Hank Schraderwhat temp and time would be perfect for dcm??
 

w2x3f5

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In order for mephedrone to come out correctly, you need to do all the steps correctly. In almost every method that I meet on the Internet, I find many wrong actions.
As a result, a person can receive 1 kg of mass, and after washing, lose up to 60-70%, and after crystallization, another part of the product.
Getting pure mephedrone hydrochloride snow-white powder, we crystallize in different ways. Sometimes a mixture of solvents sometimes gas chambers and a vacuum.
To be honest, I brominate 4-methylpropiophenone differently. I replace in 2 hours 30 minutes including cleaning.
If you have a mega powerful vacuum, you can overtake the base! But keep in mind, mephedrone, like all cathinones, does not like overheating! THEREFORE ONLY MEGAVACUUM! ))
Hank Schraderless than 15 microns and still not a good idea.
 

$!$

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After gaining access to the Research section, I will post an optimized synthesis of mephedrone with purity 99%+ and a yield close to 95% mole per 4-methylpropiophenone.
The technology is optimized for the kitchen and anyone who wants to have almost no smell will be able to receive mephedrone in huge quantities.
You have not tried this quality of mephedrone)
Hank Schraderu can say somting more about your synthesis ??
 

کیروش

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Hello;inmy country there is brmide in Solution in the description of the synthesis of mephedrone, it is 100grams can you explain more
 

w2x3f5

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Bromination with hydrobromic acid is not convenient to scale, too much volume is needed (8.3 mol per liter only HBr), bromine is not convenient due to smell, bromine succinimide is too expensive and need Tos acid. You can use bromine + oxidizing agent, then the amount of bromine is half as much and there are no acid clouds...
Best way use cheap sources of bromine.
Do not make crystals weighing more than 5kg, it is very difficult to break with a hammer.
 

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TheVacuumGuy

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Bromination with hydrobromic acid is not convenient to scale, too much volume is needed (8.3 mol per liter only HBr), bromine is not convenient due to smell, bromine succinimide is too expensive and need Tos acid. You can use bromine + oxidizing agent, then the amount of bromine is half as much and there are no acid clouds...
Best way use cheap sources of bromine.
Do not make crystals weighing more than 5kg, it is very difficult to break with a hammer.
w2x3f5What you are saying is bromine isn't convenient due to smell, NBS due to price, HBr due to volume.
But you end up saying: oxydizing agent + cheap sources of bromine..

Half of bromine or cheap source smells exactly as worse 👻
 
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w2x3f5

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What you are saying is bromine isn't convenient due to smell, NBS due to price, HBr due to volume.
But you end up saying: oxydizing agent + cheap sources of bromine..

Half of bromine or cheap source smells exactly as worse 👻
TheVacuumGuyBromides do not smell and the price is low.
 

tajira

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G.Patton
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Questions:
1.Is reflux condenser necessary? if yes why?
2.Should everything be closed tight to methylamine do not espace? am i right?
 

mocnykutas

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G.Patton

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G.Patton
Marvin "Popcorn" Sutton
Questions:
1.Is reflux condenser necessary? if yes why?
2.Should everything be closed tight to methylamine do not espace? am i right?
tajiraHi, you have to use it. Watch video please. It is used in order to avoid solvent and methylamine evaporation. In case of "shake and bake" style with small scale load, you can carry it out without condenser. It's up to you. Also, I recommend you to read topic about Glassware in Lab FAQ section to understand it better.
 

SonicNL

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If one replaces benzeen with xylem. What adjustments should be made for the correct synthesis?
 

SonicNL

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@G.Patton Yes I ment xylene. Thanks for asking. I also read about dcm as a solvent which seems to result in a cleaner product in relativily high yields.
 
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