Jednoduchá syntéza methylonu (bk-MDMA)

karamelosanto

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HI, Děkuji za sdílení této syntézy, myslím, že je velmi srozumitelná.
Jsem z Jižní Ameriky a tady je trochu obtížné sehnat DCM. Mohu se však pokusit ji nějakým způsobem najít. Možná ho koupit z Číny.
Chci se zeptat. Můžete dát všechny regenty do seznamu s množstvím, aby bylo trochu snazší pochopit, co musím koupit. Pokud je to možné i s odhadovanou cenou.
Díky!!!
 

Professor11

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Pode me mandar uma mensagem? Sou da América do Sul também, estou iniciando na produção de Metilona.
 
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V tabulce je uvedena hustota 40% methylaminu 0,89 g/ cm3, tudíž ve 20 ml se získá 7,18 g čistého plynného methylaminu.
Porovnejme molekulové hmotnosti methylaminu a jeho hydrochloridu:
M (CH3NH2)HCl = 67,518 g/mol
M CH3NH2 = 31,057 g/mol.
Poměr = 2,174
Pokud použijete poměry ze syntézy, budete potřebovat 15,6 g hydrochloridu methylaminu, abyste nahradili 20 ml 40% roztoku methylaminu.
Methylamin hydrochlorid je třeba předem rozpustit v poměru 1 g na 2,5 ml vody (15,6 g a 39 ml).
Připravte roztok hydroxidu sodného (NaOH) z 18 g a 54 ml vody, nechte jej vychladnout a nalijte jej do baňky s roztokem 2-bromo-3,4-methylendioxypropiofenonu. Poté přidejte roztok methylamin-hydrochloridu. Poté pokračujte podle návodu.
 
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arundo

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Hello, I'm doing the math, and I see that the molar ratio of NaOH isn't equivalent with methylamine HCl. It doubles. It's for some reason?
 

antrax

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Chci se pokusit o chemickou syntézu bk-MDMA Všechny potřebné chemikálie jsem již nakoupil, začnu přímo od prekurzoru 2-Bromo-3',4'-(methylenedioxy)propiofenon (číslo CAS: 52190-28-0), protože jsem ho již koupil od čínského dodavatele chemikálií a zaplatil jsem 280 dolarů za 1 kg včetně dopravy, od 25 kg zaplatím 200 dolarů za každý kg.
kg včetně dopravy.

40 % vodný roztok methylaminu jsem koupil od polského dodavatele, i když nebylo snadné ho sehnat, a ostatní chemické produkty jsou na národním trhu snadno dostupné, kromě 36 % kyseliny chlorovodíkové jsem našel pouze 35-38 % analytickou kyselinu chlorovodíkovou, kterou jsem koupil, síran hořečnatý jsem nevěděl, který koupit, a tak jsem koupil bezvodý.



Budu se řídit následující chemickou syntézou bk-MDMA, protože se mi zdá jednodušší než ta, kterou jste sdíleli, ale možná se mýlím, byl bych rád, kdybyste mi sdělili svůj názor.

http://bbzzzsvqcrqtki6umym6itiixfhni37ybtt7mkbjyxn2pgllzxf2qgyd.onion/threads/bk-mdma-synthesis-easy-and-fast-method.6423/

Děkuji!!
 

Eddybeaumont

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hello mate, can you give me an address to buy cas 52190-28-0 please?
 

Osmosis Vanderwaal

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Someone asked me the other day about using sesamol to get MD-P1P, and it looked possible. Any opinion on that?
DBVaQ6hicT
 

Wan Jack

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In a reaction kettle equipped with a condensing reflux, stirring, dropping and heating device, 111.3 g of catechol, 500 ml of dichloroethane and 166 g of ZnCl2 were added, stirred, cooled to 0-5°C, and 140 g of propionyl chloride was slowly added dropwise for about 2 hours, then the temperature was raised to 20°C and the reaction was continued for 15 hours. After the reaction was completed, water was added for dilution, and the organic phase was separated. The organic phase was sequentially acid-washed and washed with water, dried with sodium sulfate, desolventized, and the residue was recrystallized from ethanol to obtain 144 g of solid 3,4-dihydroxypropiophenone with a melting point of 145-146°C, a content of 98%, and a yield of 85%.
 
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William D.

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Yes, this method is more understandable. But I heard that you can use iodine as a Lewis acid catalyst. For more moderate conditions. I did not have time to check it, but I think that there is need study. Because the chinese intermediate of this substance have is of very poor quality, I think they have problems with the synthesis.
 

Wan Jack

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Please refer to the next step( Patent: US1964973 , 1932)
 

Wan Jack

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Sesamol Obtain MD-P1P No relevant information found
 

Wan Jack

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Preparation of 3,4-methylenedioxypropiophenone
Methanesulfonic acid (MSA, 288 g) and propionic anhydride (156 g) were charged into a 1-liter reaction flask. The mixture was cooled to 0°C and 122 g of 3,4-methylenedioxybenzene (MDB) was added under stirring. The reaction mass was maintained at 0°C to 5°C for 4 hours under stirring. After the completion of the reaction, the reaction mass was diluted with water and the 3,4-methylenedioxypropiophenone product and unreacted MDB were extracted using toluene. The toluene layer was distilled to recover 13 g of unreacted MDB and obtain 142 g of 3',4'-methylenedioxypropiophenone (GC purity > 98%, yield 131% w/w based on consumed MDB). The water layer was distilled to recover 273 g of MSA (purity > 98%), which could be reused in subsequent batches.
 
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