Paprasčiausias pefedrono kristalų receptas

[BevItUp]

UWe9o12jkied91d Gal galėtumėte patikslinti, apie kokį metodą jūs ir mocnykutas diskutuojate?

Ačiū

 

[UWe9o12jkied91d]

Nežinau, kokia procedūra jis vis giriasi, bet šiuo metu geriausius rezultatus pasiekiau ketoną ištirpindamas šiek tiek dcm, šiek tiek pašildęs iki 35-40, iš karto įdėdamas metilamino, palikdamas maišyti 10 m, kaip yra, tada po truputį per 20-30 min. įdėdamas dmso. tada įpilama vandens kartu su šiek tiek etilacetato ir maišoma dar kelias minutes, paliekama atsiskirti. praskiedžiama šaltu acetonu ir nusodinama, bandžiau ir 33, ir 37,5 HCl, jokio pastebimo skirtumo.
Iš visų mano taikytų procedūrų ši buvo švariausia ir duodanti didžiausią išeigą, be to, manau, kad kuo didesnė skalė, tuo geriau pavyksta.

 

[dodobird]

Why add the solvent along with water for flushing though? Noob here
What uf starting solvent is EA instead of DCM?

 

[alwaysalpha]

Ar kas nors bandė šį receptą?

 

[mrbeest]

I'm

 

[alwaysalpha]

Share it

 

[Davidmalik96]

please clarify

 

[frosties]

Where can I buy benzene/Benzol in Germany anonymously?

 

[dnBQByvHb8Zkawbjpx]

Benzene is rather restricted in the EU. You may be able to find a seller but as an individual consumer you'll have a hard time justifying the purchase of more than limited quantity. Ethyl acetate is a solvent for making 4MMC that can be obtained the easiest, is fully legal and not restricted, and is quite cheap.

 

[frosties]

Thx I'll go with you his method.

 

[dnBQByvHb8Zkawbjpx]

Do you have experience with recovering solvents through distillation? DCM is moderately difficult to obtain (restricted for consumers in the EU) and NMP is expensive, so reusing them could be an interesting option.

 

[jango]

Wow, that yield is massive. Are there any alternatives to NMP to work as a phase transfer catalyst? I've read that it could be substituted by DMSO, are there any other options that may be cheaper and more easily available?

I don't understand why solvents are not reused on a larger scale as well - it limits the volume of waste and brings down the cost.

 

[dnBQByvHb8Zkawbjpx]

Wow, that yield is massive. Are there any alternatives to NMP to work as a phase transfer catalyst? I've read that it could be substituted by DMSO, are there any other options that may be cheaper and more easily available?

I don't understand why solvents are not reused on a larger scale as well - it limits the volume of waste and brings down the cost.

 

[61-50-7]

Some impurities stay in the solvent so distillation is needed for reuse and it takes a lot of time and need large equipments. For legal businesses it's possible but for drugs way more complicated (time, space, electricity consumption, etc)

 

[dnBQByvHb8Zkawbjpx]

I understand that and I had distillation in mind to recover pure solvent. Especially DCM with its boiling temperature of 40 °C requires almost no energy to distill. I'm definitely going to do that and in about a month I should have some first-hand experience to share.

 

[dodobird]

Hi. This post made months of reading confusion go away, very straightforward, thanks @Madre . I had some important doubts to be cleared for upcoming MasterChef tryout , appreciate guidance on them. Here we go...

1. Can I replace the benzene with say 300 ml Ethyl acetate. If so what proportion would be ideal and if any procedural changes needbto be made, I am guessing not.

2. Is it Hcl38% we should use?

3.Does the methyl gad need to be relased after animation at all or do we just pour it in shake and then seal to put in the fridge?
How can I reduce this stage to under 1 hour or 2. Any temperature rise monitoring or precaution until this stage? Max temp?

4. Do we need to was the freebase during flushing, with nac03 plus water first and then 2 x with distilled water?

5. Is this method of preparing the 10-90 Acetine hcl38 solution and adding together, better yielding or beneficial over the much common separate addition method of acetone and hcl38? Does it affect quality potency or failure chances or perhaps yield weight of final powder 4mm

6.... Please share equationally correct reagent and chemical quantities for making 10 kg a day. Also any simple apparatus methods for doing this quantity without much labware beside basic flask and jar. What reaction container could I probably use to replace a reactor etc etc


THANKS YOU VERY MUCH IN ADANCE , GREA JOB!!!