One-pot Amphetamine Synthesis From P2NP With NaBH4/CuCl2 (1kg scale)

Montecristo

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Here was what i did on a smaller scale;
1. Solution IPA/H2O 2:1 ((IPA 800ml,H2O 400ml)(1200ml)) was added a 2000ml flask.
2. NaBH4 (116 g) was added at once and stirring was started.
3. P2NP (67 g) was added in small portions, so that the temperature of the mixture did not exceed 60 *С.
4. CuCl2 (7 g) in water (13 ml) was added slow dropwise, so that the temperature of the mixture did not exceed 80 *С.
5. Thereafter, reaction was refluxed at 80 °C for 30 minutes using external heating.
6. Solution is decanted and filtered from reaction waste and put into a seperatory funnel.
7. 25% water solution of NaOH (533ml) was added to reaction mixture and the phases were separated.
8. Drain the bottom layer into a large beaker and collect the top organic layer.
9. The aqueous phase was then put into the seperatory funnel and extracted with 500ml of IPA.
10.IPA was evaporated by 3/4, half milky freebase and half IPA.
11.The IPA and freebase was dissolved in 130ml of acetone.
12.orthophosphoric acid dripped to pH - 6 (with constant stirring).
13.The mixture was put in the freezer for 12 hours.
14.After crystallisation the suspension was filtered and washed with dry cold acetone, until acetone is clean.
15.Acetone from washing and the ipa/acetone mix is placed back into freezer for further precipitation.
16.Process repeated until no more precipitate to yield 60-70% high quality amphetamine, as the mix gets more acetone in it you may need to drip some more acid to bring it down, but not too much as acetone is ph7.

Here is a photo of some of the dried paste rocks , the rest is dry powder to be mixed, as it is too strong for me and my friends.
I may update the recipe and do a write up for the small scale home chemist, there are lots of ways this could be better.
 

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flyhigh

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this is no meth , can you write from here on how to make it to crystal meth
 

Kylemalone1297

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A different process. P2P or sudo. Just pick one. But these are safer imo
 

G.Patton

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Hi. CuCl2 Works as catalyst in this reaction. Do you need more detailed explanation?
 

Kylemalone1297

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I would like to know the entire concept if u k know it. Like how much copper to reduce p2np exactly. Are we making an electron here in this synth? What is going on exactly ? I understand how to run through but not the actual chemical reaction that is happening.
 

G.Patton

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What do you mean?
There is clearly said how much. 105g CuCl2 per 1kg P2NP.

NaBH4 donate hydrogen while this reaction to P2NP and nitrogen atom change its oxidation state from +3 to -3. Hence, it get 6 electrons.
 

mithyl2

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and what % Sulfuric acid should be used?
 

Kylemalone1297

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Buy virgin sulfuric from as drain cleaner if u can’t find one with a high purity. I could only find like 20% online for some reason. The drain cleaner is actualy more pure. Like wtf
 

G.Patton

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it's worth to use 96-98%, but you can use less concentrated as well.
 

diogenes

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Hi,

I have just done this synthesis and the yield is 60%+ (some acetone still in the freezer), which is not bad considering that at some point the reaction mass spillt out (overheated and started to expand). I quickly cooled it and then kept a reflux condenser on top for the rest of the reaction (the original description does not mention this). There is some delay in the heat increase following the addition of a portion of the P2NP, which needs to be considered, I added a further portion too quickly. A cold bath is handy. The endproduct is very efficient in terms of bio-test, I am doing an acid-base extraction to see whether there are other chemicals is the endproduct as well. There is a slight, distinct smell, which I identify as close to the smell of Cu perhaps?, which lingers despite 5X Acetone wash and having a very white, pure looking product.

I was wondering if there is anyone here, who could write out the exact reaction what is happening in this synthesis. The role of CuCl2 is not clear to me and also how the H atoms move etc. It would be very useful to have the reaction explained in a bit more detail. Apologies, if this has already mentioned, I have seen most of this thread, but haven`t had the chance to catch up lately. Thank you
 

mile123

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Hello!

What reflux condenser do you recommend, is Friedrichs really worth double the price compared to Graham?


I read here that @OrgUnikum recommends Friedrichs.


I'm thinking about adding reflux condenser at 3. step

because of suggestion below

and possible h2 production safety reasons


Br,
Mile
 

WinterDust

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I am currently doing batches of 200g of P2nP.

I have quite good cooling method so my temperature never exceeds 47celsius.

It take 1h to add the whole portion of 200g.

Once you add the P2nP the reaction takes a little while to occur the first time, and it starts to foam, during foaming. Don't add more P2nP! Wait until the foam settles and you can see 60% foam and 40% liquid, that is the "soft spot" to add another portion.
 

Kylemalone1297

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What all am I looking for during the reaction, can u see when it is happening and when it is done ? Can u explain more about what the chemistry is behind what is happening during the reaction. Just to have more understanding of how it works
 

WinterDust

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Hi,

Question,

When the amphetamine oil is crystalized with sulfuric acid, it's time to filter out the amphetamine with a Buchner Funnel, my question is. What type of filtration paper it recommended for this?

For example, I'm looking at a filter with the following properties, is this a good recommendation?

Filter Properties:
Filter papers made of tissue paper
Hard filters - filtration time 140 seconds (Retention> 2 µm). Slow filtration.
Dense filters for fine and very fine sediments.
Weight: 85 g / m2.
Thickness: 0.17 mm.
Filtration time: 140 s.
Retention:> 2 µm.


Best Regards
 

mile123

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1. Material:
Generally, tissue paper is not recommended for chemical filtration, especially in organic chemistry, as it may not provide the necessary chemical resistance and could introduce impurities.

3. Retention:
This retention level is suitable for filtering out larger particles, but if the amphetamine salt crystals are smaller than this size, they may pass through the filter. For crystallization processes, you typically want a filter paper that can retain smaller particles, ideally in the range of 1 µm or less.


4. Weight (85 g/m²) and Thickness (0.17 mm):
a relatively dense filter paper, which may be good for fine filtration but could also slow down the process. Thicker filter papers tend to have lower flow rates

Recommendations​

Quantitative Filter Paper:
Look for papers with a retention size of 1 µm or less, which would be more suitable for filtering fine crystals.


Buchner Funnel Filtration:
Whatman filter paper or similar brands that are specifically designed for vacuum filtration. These papers are available in various grades, including those with finer retention capabilities (e.g., Whatman Grade 1 or Grade 2).

src: chatgpt

Let me know if something is wrong
 

ASheSChem

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good question.. i'm intersted too..
actualy i use this
FzdjT09Rtc
4Bi1xnHSvJ


but i don't know what it is lol

i saw a lot of type of filter "qualitative" or "quantitative" and in each category a version "slow" "medium" and "fast"...
what's the best ? :p
 

mile123

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Quantitative Filter Paper
Specification: 9.0 cm
The second image has a table with various specifications, likely describing different types of filter paper based on attributes like thickness, pore size, or filtration speed.

9ut4zHprkZ

from chatgpt
 

wannabewalter

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What is a purity of a final 60% - 70% yield? I found that there is such thing as amphetamine paste and amphetamine sulfate and sulfate is x2 in price. What is this final product (124.4g on video)?
 

aaduo04

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a videóban a végső mennyiség szulfát. A paszta konzisztenciája tömeg szerint 3x lehet, mert az oldószerek nem párologtak el. (javítsatok ki, ha tévedek).
 

Kylemalone1297

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Can I do a run of the synth with only 5g p2np ? To get a grip on it first.
 

G.Patton

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You have to! Small scale batch is necessary to carry out several times before large one in order to understand this synthesis and remember it well.
 

Kylemalone1297

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Is 5g p2np okay or too small ? And is pressure required during reaction or just the constant heating ?
 

G.Patton

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Yes, okay. Atmosphere pressure.
 

Kylemalone1297

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Is the pressure required or will it do fine just running hot with no pressure? Do I need to hold as much pressure as possible ? I have a nice 1000ml heavy wall round bottom. So it will hold some, but if it isn’t needed I won’t worry about it.
 

Ironbender

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I tried this synthesis on a small scale.
It failed completely. In the end I didn't even receive A-Oil.

This was my path:

p2np 10g

IPA/H2O (1:2) IPA 120ml/H2O 60ml (180ml)

NaBH4 17.4g

CuSO4.5H2O 7.9g in 20ml H2O

NaOH 25.6g in 80ml H2O

First water and then IPA were filled into the flask at room temperature and stirred.

NaBH4 was completely filled into the flask and stirred overhead.

p2np was added over a period of 30 min.
The temperature did not rise above 45 degrees.

When all P2NP was in the flask I increased the temperature to 55-58 degrees and refluxed for 40 minutes.

Then CuSO4.5H2O
dropped into the flask. Black copper immediately formed
Somehow the temperature didn't increase.

The RM was heated in a water bath to 78-80 degrees for 30 minutes.

The flask was left at room temperature for 1 hour.

There were 2 layers in the flask, black copper at the bottom. 'Amber cloudy at the top.

There was something slightly yellow in between that couldn't be dissolved.

Then 80 ml of 25% NaOH was added to the RM and a dark amber layer became visible.

It didn't smell like amphetamine base,
it smelled very flowery.
Nothing reminiscent of Amphetamine Oil.

Can someone explain what was wrong?
I followed the small scale instructions from this thread

p2np was from BM-chemistry
and looks very clean and bright.
It can't fail because of that.

I'm sorry for the bad English, hope you understand what I want to say.
 
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