Mefedrooni süntees (4-MMC) NMP lahustis. Suures mahus.

bubuka

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Tahaksin valmistada MMC-d NMP-s. Probleem on selles, et mul puudub pH-paber. Kui problemaatiline on see, kui ma lõpus üle hapestan? Või oskate öelda, kui palju 30% soolhapet peaksin 100g 2b4m kasutamisel lõpus lisama? Hapestan DCM+vees.
 
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William D.

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Kui teil ei ole piisavalt kogemusi, peate maksimaalse saagise saamiseks kasutama indikaatoreid. Kui see ei ole võimalik, saame teile arvutada minimaalse happekoguse, mida saate toote saamiseks lisada.
 

TheVacuumGuy

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Kui ostate elektrilise, tehke endale teene, kui kulutate lisakulu, et saada klaasproov. Vastasel juhul lahustub see (jah, olnud seal)
 

c01db100d_india_mephedron

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kas me saame asendada
soolhapet 48% vesinikkloriidiks
kui see on võimalik, kui palju toote saagist ja kui palju me tahame saada
 

William D.

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Jah, seda asendust saab kasutada. Toote kaal on samadel tingimustel veidi suurem.
 

Hanna520

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Miks kasutada benseeni ja NMP-d. Kasutage selle asemel etüülatsetaati. Palju ohutum. Vahetage monometüülamiini aqua alkoholi baasil.
Pärast vee lisamist. Eraldage kihid. Võtke "õli" kiht ja destilleerige EA ära. Rasvem see samm. Jahutage baasõli 1 tunni jooksul külmas -19. Reageerimata kõrvalsaadused tulevad. Filtreerige lahus ja pange alus AC ja HCL37%-ga lisage pH 5,5.

Ärge kasutage kuumutamiseks leeki. Kasutage selle asemel vanni. See seadistus annab teile häid tulemusi. ;))
 
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momogf

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Hea viis, kuidas ma tegin ise 2bromo4metüleenopropiofenooni
 

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dnBQByvHb8Zkawbjpx

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Seda arutati paar päeva tagasi peavestluses. Üldine soovitus oli, et EA-destilleeriksime ära 55 °C juures vaakumis (/negatiivse rõhu all), et saagis oleks parem. Kas te mõtlesite seda või pidasite silmas destilleerimist normaalsel rõhul 77 °C juures (EA keemistemperatuur)?

Ma loen sellest esimest korda ja ma proovin seda.

Ma alustan teemat 4-MMC saagise maksimeerimise kohta ja kutsun teid oma teadmisi jagama. Tundub, et te teate sellest palju.
 

William D.

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Jah, etüülatsetaatmeetod on hea, kui teil on metüülamiini alc. soln. See lahendab paljud probleemid.
 

Germanium

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Kas soolhappe lisamise asemel on võimalik kristallisatsioonietapis vesinikkloriidigaasi mullida?
 

dnBQByvHb8Zkawbjpx

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Jah, see on hea alternatiiv soolhappe kasutamisele, kui te pidasite silmas "hapestamist", mitte "kristalliseerumist". Kristalliseerimise käigus ei lisata hapet.
 

goku1008

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but in video no Benzene used
 

CARLITOBRO

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can we replace NMP also with ethyl acetate and if yes how much for 100gr of 2b4m
 

HIGGS BOSSON

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Yes, you can use NMP, DCM, ethyl acetate
bbzzzsvqcrqtki6umym6itiixfhni37ybtt7mkbjyxn2pgllzxf2qgyd.onion/en/threads/mephedrone-4-mmc-synthesis-from-haloketone-in-ethyl-acetate-1-10-kg-scale.39/unread
 

baadwd332

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Hey, thanks for sexy video.
I wonder if you know Perrine paper about bupropion synthesis in NMP (Im sure you do, apparently he got an idea to use NMP).
If not, here you go:

Perrine, D. M.; Ross, J. T.; Nervi, S. J.; Zimmerman, R. H. A Short, One-Pot Synthesis of Bupropion (Zyban®, Wellbutrin®). J. Chem. Educ. 2000, 77 (11), 1479– 1480, DOI: 10.1021/ed077p1479


If you carefully read SI you will see that they had to wash out methylamine from organic layer. Had to be couple of times of water washing. In your procedure you don't even wash organic (benzene) layer, thus I wonder if you ever check melting point? Seems it might be mix of 4mmc and methylamine hydrochloride.
 

William D.

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In the synthesis that you wrote about, a large excess of pure amine is used. In our synthesis, an aqueous solution of amine is used. This changes the conditions. If you use more than two flushing, you will lose a lot in the weight of the product. The amount for several grams and quantities for several kilograms always change conditions, especially in the amounts of solvents and flushing water.
 
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