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btcboss2022

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Hello,

After check and test the methods posted in the thread http://bbzzzsvqcrqtki6umym6itiixfhn...-methyl-pmk-glycidate-conversion-to-pmk.2013/ I decided the post the best method for me:

1. Put 47,5 liters of H2O in the reactor and add 2,5kg of sodium bicarbonate, stirring until complete dissolution, take out the mixture and keep it.
2. Put in the reactor 7L of H2O
3. Add while stirring 1,2kg of sodium hydroxide
4. While the H2O and the sodium hydroxide are mixing and getting temp put 5kG of wax PMK to melt by low heat.
5. When PMK is melted add it to the reactor and put the mixture at 80 °C reflux during 1 hour stirring.
6. Add 3,25kg of HCL 37% in small portions, once all added keep the mixture at 80 °C reflux during 1 hour stirring.
7. Stop stirring and put the mixture at 25 °C.
8. Discard the water top layer.
9. Put again in the reactor the oil top layer.
10. Add the H2O and sodium bicarbonate mixture, stirring 2-3 minutes.
11. Add 10 liters of DCM (from freezer preferably).
12. Let it get separated around 10-15 min.
13. Evaporate DCM from the bottom layer.

PMK oil (MDP2P; cas 4676-39-5) yield is 3,72kg.
 
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Bartholomeus

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Hello,

After check and test the methods posted in the thread http://bbzzzsvqcrqtki6umym6itiixfhn...-methyl-pmk-glycidate-conversion-to-pmk.2013/ I decided the post the best method for me:

1. Put 47,5 liters of H2O in the reactor and add 2,5kg of sodium bicarbonate, stirring until complete dissolution, take out the mixture and keep it.
2. Put in the reactor 7L of H2O
3. Add while stirring 1,2kg of sodium hydroxide
4. While the H2O and the sodium hydroxide are mixing and getting temp put 5kG of wax PMK to melt by low heat.
5. When PMK is melted add it to the reactor and put the mixture at 80C reflux during 1 hour stirring.
6. Add 3,25kg of HCL 37% in small portions, once all added keep the mixture at 80C reflux during 1 hour stirring.
7. Stop stirring and put the mixture at 25C
8. Discard the water top layer.
9. Put again in the reactor the oil top layer.
10. Add the H2O and sodium bicarbonate mixture, stirring 2-3 minutes.
11. Add 10 liters of DCM( from freezer preferably)
12. Let it get separated around 10-15 min.
13. Evaporate DCM from the bottom layer.

Yield: 3,72kg of PMK oil
btcboss2022
You always Impress with those complete synthesis reports, keep it up brother! Congratulation on success :)
 

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Thanks for saving us time ! just got mine , so just in time. thanks a lot !
 

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8. Discard the water top layer.
9. Put again in the reactor the oil top layer.

how many layers will there be? the top was discarded water and then ?
 

Field7

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8. Discard the water top layer.
9. Put again in the reactor the oil top layer.

how many layers will there be? the top was discarded water and then ?
BennychairmanI saw that, too. That's a typo. There should just be two layers. I'd expect the oil layer to fall to the bottom. Separate the top, aquas layer, and discard. Keep the bottom oil layer for the next step. Then, later, if using DCM, your end product will be in the non-aquas bottom DCM layer. If you substitute Toluene or Diethyl Ether for DCM (like someone else asked about doing), your product will be in the non-aquas upper layer. DCM, down. Toluene and Diethyl Ether, up. I'd suggest you stick with DCM because it can be separated using low heat unlike Toluene, and doesn't pose quite the same fire hazard that DE does. It is a carcinogen, though, and *does have a low flash point*. Use a well ventilated space, and collect in a chilled vessel for reuse.
 

btcboss2022

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8. Discard the water top layer.
9. Put again in the reactor the oil top layer.

how many layers will there be? the top was discarded water and then ?
Bennychairman2 layers, when you discard water layer you must wash the oil layer with water+sodium bicarbonate solution as the procedure explains.
 

Dafunkphenomena

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Hello,

After check and test the methods posted in the thread http://bbzzzsvqcrqtki6umym6itiixfhn...-methyl-pmk-glycidate-conversion-to-pmk.2013/ I decided the post the best method for me:

1. Put 47,5 liters of H2O in the reactor and add 2,5kg of sodium bicarbonate, stirring until complete dissolution, take out the mixture and keep it.
2. Put in the reactor 7L of H2O
3. Add while stirring 1,2kg of sodium hydroxide
4. While the H2O and the sodium hydroxide are mixing and getting temp put 5kG of wax PMK to melt by low heat.
5. When PMK is melted add it to the reactor and put the mixture at 80C reflux during 1 hour stirring.
6. Add 3,25kg of HCL 37% in small portions, once all added keep the mixture at 80C reflux during 1 hour stirring.
7. Stop stirring and put the mixture at 25C
8. Discard the water top layer.
9. Put again in the reactor the oil top layer.
10. Add the H2O and sodium bicarbonate mixture, stirring 2-3 minutes.
11. Add 10 liters of DCM( from freezer preferably)
12. Let it get separated around 10-15 min.
13. Evaporate DCM from the bottom layer.

Yield: 3,72kg of PMK oil
btcboss2022
Hello , thats my method, (im Fring, just lost the fucking password)
ive seen you added some steps, questions:

you deceided to use sodium bicarbonate instead of NaOH washings , why exactly? (i tried both all worked)
and in the final step, you say "evaporate the DCM from the bottom" , why evaporate? would not be better separate the layers?
or you mean , after separate put it to vacuum distill to get rid of some possible water residues?

and the PMK colour? dark red-brown, or yellowish as the old one?
 

Field7

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Hello , thats my method, (im Fring, just lost the fucking password)
ive seen you added some steps, questions:

you deceided to use sodium bicarbonate instead of NaOH washings , why exactly? (i tried both all worked)
and in the final step, you say "evaporate the DCM from the bottom" , why evaporate? would not be better separate the layers?
or you mean , after separate put it to vacuum distill to get rid of some possible water residues?

and the PMK colour? dark red-brown, or yellowish as the old one?
DafunkphenomenaYou do separate it. You separate the bottom layer, which is composed of DCM and Product, and then evaporate the DCM from *what was the bottom layer* (I'd use a hot water bath) to leave your (dirty, but clean enough for most) product. Steam distillion of the product would be a good idea, I think.

If someone is familiar with the chemistry, they know there's a bundle of variations you could apply.
 

Curiousonion

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Does this method work, did anyone try this?
Seems by far the simplest method and too easy.
 

Curiousonion

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It’s correct for pmk oil but after that you have to reduce the oil and process it to get mdma. I think you know that. For pmk oil it’s not the most simple way. Many seller in china talking crap so there are a bunch more of easy ways… try his method
UnknownRadarWell this method is for pmk CAS 28578-16. So you can get that in powder form then it turns into oil after you finish with the reaction.
But this seems extremely easy, has anyone tried this?
 

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The method is proven and this is why the OP posted it, try for yourself and see
ChingShihPerfect, I shall. Just wanted to make sure because there seems to be a lot of confusion about pmk oil and its different versions.
Thanks
 

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Perfect, I shall. Just wanted to make sure because there seems to be a lot of confusion about pmk oil and its different versions.
Thanks
CuriousonionThis post is good explanation, which was posted @btcboss2022 (thank you). I confirm, that it is proved and working method.
 

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btcboss2022

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Hello,

Sorry I was very busy these days, all the methods that I posted have been done and tested by myself as I say in the same post, it's more many of them tested and only the best one posted.
Thanks.
 

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Hello,

Sorry I was very busy these days, all the methods that I posted have been done and tested by myself as I say in the same post, it's more many of them tested and only the best one posted.
Thanks.
btcboss2022Why is there no reference to color of the oil and aqueous phases?
 

Handsomerx

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Im not used to reference them but what do you need to know exactly?
btcboss2022Like what is the color of the oil which separates to the bottom? My starting pmk is kind of a light brown color so I assume the oil which renders out should look similar to that.
What is the color of the aqueous layer upon separation? Mine is a sort of pale yellow green.

I thought it was standard operating procedure to mention the color of your product.
Anyway thank you! It’d be very helpful to hear back.

Side note…when you say “evaporate dcm” do you mean actually to let it sit with low heat to evaporate? Or are you talking about stripping it under vacuum.

thanks
 

btcboss2022

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Hello , thats my method, (im Fring, just lost the fucking password)
ive seen you added some steps, questions:

you deceided to use sodium bicarbonate instead of NaOH washings , why exactly? (i tried both all worked)
and in the final step, you say "evaporate the DCM from the bottom" , why evaporate? would not be better separate the layers?
or you mean , after separate put it to vacuum distill to get rid of some possible water residues?

and the PMK colour? dark red-brown, or yellowish as the old one?
DafunkphenomenaHello,

Firstly I don't think you created that process, in fact I had this similar info long time ago from Chinese suppliers, anyway I made some changes as you can see.
Sodium bicarbonate is a softer washing method and in this case is safer to use it to avoid to damage the product.
About DCM obviously I mean to separate the bottom layer(DCM layer) and evaporate it sorry if my explanation is not clear.
To avoid water after separate layers you can dry it with anydrous sodium sulfate and filter it before evaporate the solvent( in fact I always do it in all my processes)
Thanks.
 

FredDurst

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Hello,

Firstly I don't think you created that process, in fact I had this similar info long time ago from Chinese suppliers, anyway I made some changes as you can see.
Sodium bicarbonate is a softer washing method and in this case is safer to use it to avoid to damage the product.
About DCM obviously I mean to separate the bottom layer(DCM layer) and evaporate it sorry if my explanation is not clear.
To avoid water after separate layers you can dry it with anydrous sodium sulfate and filter it before evaporate the solvent( in fact I always do it in all my processes)
Thanks.
btcboss2022Is there any alternative to DCM (Toluene maybe?) as its hard to get in my country?
 

Curiousonion

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May I ask what method you use to crysyalize the final product?
 

btcboss2022

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May I ask what method you use to crysyalize the final product?
CuriousonionBefore crystalize you must get the freebase, for freebase I use NaBH4 method and to crystalize the freebase there are a lot of methods.
 

Curiousonion

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Ah ok so I was confused, I thought the final product that you got from your reaction was the mdma freebase.
Before crystalize you must get the freebase, for freebase I use NaBH4 method and to crystalize the freebase there are a lot of methods.
btcboss2022
 
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