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ASheSChem

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Pyrrolidine is findable in Europe ?
 

HerrHaber

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Pyrrolidine is findable in Europe ?
ASheSChemeven though it is commercially available and without any reason for it being suspectable (at least not where I am at), surely somebody around here can provide it, moreover it can be obtained from the aminoacid proline by thermal decarboxylation (heating it in a high boiling point solvent but not higher than it actually boils so it does not evaporate out)
 

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FishAndChips

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1. In video, present: ~1 kilo (~700ml) of bromovalerophenone?
2. This proportions are correct? 100g(bk),110ml(pyrrolidine),400ml(EtAc),60ml(distilled water)?
3. In video u adding water at amination stage, but in forum text-message acetone added, what difference?
komkom
100g bk,100ml pyrrolidine (~90g) ,400ml EtAc
these are the correct proportions for the AMINATION step
after completion of the reaction add 600ml of water to wash and separate the organic phase
acetone is added before acidification, after the organic layer has been separated from the aqueous layer.
 

trump69

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Hank Schrader

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My team is the largest in the CIS countries for the production of such things as salt.
Our main product in cathinones is A-PVP hydrochloride.
Our production technology allows us to complete the entire cycle from start to finish.
All precursors that are practically used are produced by our team.
Bromination is carried out on an industrial scale with the absorption of hydrobromic acid.
The brominated ketone is neutralized and replaced by pyrrolidine.
Then there is the stage of obtaining salt and crystallization.
My product has excellent organoleptic properties and high purity.
We are the power of the chemical industry.
Ready to cooperate with manufacturers and wholesalers.
With us, you can learn how to brominate on an industrial scale or already use ready-made brominated ketones. Increase your production volumes hundreds of times!
Start cooperating with us,
we are the best team from the CIS.
 

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StarWars

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My team is the largest in the CIS countries for the production of such things as salt.
Our main product in cathinones is A-PVP hydrochloride.
Our production technology allows us to complete the entire cycle from start to finish.
All precursors that are practically used are produced by our team.
Bromination is carried out on an industrial scale with the absorption of hydrobromic acid.
The brominated ketone is neutralized and replaced by pyrrolidine.
Then there is the stage of obtaining salt and crystallization.
My product has excellent organoleptic properties and high purity.
We are the power of the chemical industry.
Ready to cooperate with manufacturers and wholesalers.
With us, you can learn how to brominate on an industrial scale or already use ready-made brominated ketones. Increase your production volumes hundreds of times!
Start cooperating with us,
we are the best team from the CIS.
Hank SchraderWhat IT is ??
 

VamonosPest

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What could i replace pyrrolidine with?
 

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G.Patton

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Of course there is no arguing in: "Chemical1 is not listed as illegal." The fact only that it can be used to produce an illegal drug is easily enough to get a full sentence. The good site about it is: When the people catch you, you will have a much worse fate.
I hear in other parts of the world, like Texas, there is about the same. Therefore this neglect here is not understandable.
CalebYou wrote quite obvious things. What is a main idea of your message?
 

Caleb

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You wrote quite obvious things. What is a main idea of your message?
G.PattonActually the idea was to show (again) that people using substances are being treated llike criminals.
In some places they are even seen worse than child molesters and suicide bombers.
This speaks for itsel.
 

Hank Schrader

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Different methods of crystallization and dyes.
The form can be in A-PVP in the flesh to the shape of a brick.
Crystallization on mixtures of alcohol. Crystallization in liquid nitrogen. Crystallization on water in vacuum chambers.

Dyes are used for food and in very small quantities, which allows you to use PVP in smoking ways.

Some consumers demand red, others claim that green is stronger!
Although we take a white product from one reactor.
This is very funny.

From a chemical point of view, of course, the white standard of quality.
BjLeEXqySo RgCyqKk4sf POjufBe3QE DvEsoH3rWz GluFxXMSP1 Ig93h4e0lX LiVznxR0hf 7LuOCSXvs2 FAkelK4pDr FHq0SDIjAW GoV0JbM3yW XIlwvFGUKH 2o9RYCaLuI SNAs2bB7vM QvpLxrotS6
 

FishAndChips

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Hi! I cant find the proportion of how many 2-bromovalerophenone i need to use,someone can help me?
 

trump69

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Amination α-PVP synthesis from 2-Bromovalerophenone

I would like to know if this is correct since I started to buy 1kg of 2-bromovalerophenone then l skipped all the steps and l m not sure of the porpotion but if someone can helping? I can pay it

Ethyl acetate 400 mL

pyrrolidine 87g

2-bromovalerophenone 87g

Is that correct porpotion, guys? 😊
 

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pachemguy

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How much methylamine would one use for 1kg of bk ??
 

OrgUnikum

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How much methylamine would one use for 1kg of bk ??
pachemguy262 g is absolute minimum, realistically 280 g - 300 g.
Thats 700 g - 750 g of a 40% MeNH2 solution in water, look at the 4-MMC synth which uses EtOAc for the workup/crystallisation as it won't work as here described for the water.
 
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w2x3f5

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262 g is absolute minimum, realistically 280 g - 300 g.
Thats 700 g - 750 g of a 40% MeNH2 solution in water, look at the 4-MMC synth which uses EtOAc for the workup/crystallisation as it won't work as here described for the water.
OrgUnikumif use alkali, then half the amount of methylamine is needed in theory, then 1 mol of methylamine, 1 mol of bromovalerophenone and 1 mol of alkali. We also take into account that an aqueous solution of methylamine erodes during storage, a good excess of methylamine will additionally mix the reaction in the direction of the formation of aminoketone
 

pachemguy

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Thanks everyone gonna try to synth pyrrolidine direct from l-proline and copper carbonate I just have this 55gal drum of 40% laying around one day she find a good use
pachemguyCopper carbonate is not a good catalyst for this reaction copper chromate or acetophenone dose a great job I also have found success with spearmint oil and turpentine
 

pachemguy

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Thanks everyone gonna try to synth pyrrolidine direct from l-proline and copper carbonate I just have this 55gal drum of 40% laying around one day she find a good use
pachemguyWish I could get my hands on 55gal drum you ever wanna come up off some of that lmk lol
 
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